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-<div class="refentry" title="Signals">
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<a name="gobject-Signals.synopsis"></a><h2>Synopsis</h2>
<pre class="synopsis">
#include <glib-object.h>
- <a class="link" href="gobject-Signals.html#GSignalInvocationHint" title="GSignalInvocationHint">GSignalInvocationHint</a>;
-<a href="./../glib/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> (<a class="link" href="gobject-Signals.html#GSignalAccumulator" title="GSignalAccumulator ()">*GSignalAccumulator</a>) (<a class="link" href="gobject-Signals.html#GSignalInvocationHint" title="GSignalInvocationHint"><span class="returnvalue">GSignalInvocationHint</span></a> *ihint,
- <a class="link" href="gobject-Generic-values.html#GValue" title="GValue"><span class="returnvalue">GValue</span></a> *return_accu,
- const <a class="link" href="gobject-Generic-values.html#GValue" title="GValue"><span class="returnvalue">GValue</span></a> *handler_return,
- <a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a> data);
+struct <a class="link" href="gobject-Signals.html#GSignalInvocationHint" title="struct GSignalInvocationHint">GSignalInvocationHint</a>;
+<a href="./../glib/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> (<a class="link" href="gobject-Signals.html#GSignalAccumulator" title="GSignalAccumulator ()">*GSignalAccumulator</a>) (<em class="parameter"><code><a class="link" href="gobject-Signals.html#GSignalInvocationHint" title="struct GSignalInvocationHint"><span class="type">GSignalInvocationHint</span></a> *ihint</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Generic-values.html#GValue" title="GValue"><span class="type">GValue</span></a> *return_accu</code></em>,
+ <em class="parameter"><code>const <a class="link" href="gobject-Generic-values.html#GValue" title="GValue"><span class="type">GValue</span></a> *handler_return</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> data</code></em>);
typedef <a class="link" href="gobject-Signals.html#GSignalCMarshaller" title="GSignalCMarshaller">GSignalCMarshaller</a>;
-<a href="./../glib/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> (<a class="link" href="gobject-Signals.html#GSignalEmissionHook" title="GSignalEmissionHook ()">*GSignalEmissionHook</a>) (<a class="link" href="gobject-Signals.html#GSignalInvocationHint" title="GSignalInvocationHint"><span class="returnvalue">GSignalInvocationHint</span></a> *ihint,
- <a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> n_param_values,
- const <a class="link" href="gobject-Generic-values.html#GValue" title="GValue"><span class="returnvalue">GValue</span></a> *param_values,
- <a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a> data);
+<a href="./../glib/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> (<a class="link" href="gobject-Signals.html#GSignalEmissionHook" title="GSignalEmissionHook ()">*GSignalEmissionHook</a>) (<em class="parameter"><code><a class="link" href="gobject-Signals.html#GSignalInvocationHint" title="struct GSignalInvocationHint"><span class="type">GSignalInvocationHint</span></a> *ihint</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> n_param_values</code></em>,
+ <em class="parameter"><code>const <a class="link" href="gobject-Generic-values.html#GValue" title="GValue"><span class="type">GValue</span></a> *param_values</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> data</code></em>);
enum <a class="link" href="gobject-Signals.html#GSignalFlags" title="enum GSignalFlags">GSignalFlags</a>;
enum <a class="link" href="gobject-Signals.html#GSignalMatchType" title="enum GSignalMatchType">GSignalMatchType</a>;
- <a class="link" href="gobject-Signals.html#GSignalQuery" title="GSignalQuery">GSignalQuery</a>;
+struct <a class="link" href="gobject-Signals.html#GSignalQuery" title="struct GSignalQuery">GSignalQuery</a>;
#define <a class="link" href="gobject-Signals.html#G-SIGNAL-TYPE-STATIC-SCOPE:CAPS" title="G_SIGNAL_TYPE_STATIC_SCOPE">G_SIGNAL_TYPE_STATIC_SCOPE</a>
#define <a class="link" href="gobject-Signals.html#G-SIGNAL-MATCH-MASK:CAPS" title="G_SIGNAL_MATCH_MASK">G_SIGNAL_MATCH_MASK</a>
#define <a class="link" href="gobject-Signals.html#G-SIGNAL-FLAGS-MASK:CAPS" title="G_SIGNAL_FLAGS_MASK">G_SIGNAL_FLAGS_MASK</a>
-<a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> <a class="link" href="gobject-Signals.html#g-signal-new" title="g_signal_new ()">g_signal_new</a> (const <a href="./../glib/glib/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *signal_name,
- <a class="link" href="gobject-Type-Information.html#GType" title="GType"><span class="returnvalue">GType</span></a> itype,
- <a class="link" href="gobject-Signals.html#GSignalFlags" title="enum GSignalFlags"><span class="returnvalue">GSignalFlags</span></a> signal_flags,
- <a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> class_offset,
- <a class="link" href="gobject-Signals.html#GSignalAccumulator" title="GSignalAccumulator ()"><span class="returnvalue">GSignalAccumulator</span></a> accumulator,
- <a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a> accu_data,
- <a class="link" href="gobject-Signals.html#GSignalCMarshaller" title="GSignalCMarshaller"><span class="returnvalue">GSignalCMarshaller</span></a> c_marshaller,
- <a class="link" href="gobject-Type-Information.html#GType" title="GType"><span class="returnvalue">GType</span></a> return_type,
- <a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> n_params,
- ...);
-<a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> <a class="link" href="gobject-Signals.html#g-signal-newv" title="g_signal_newv ()">g_signal_newv</a> (const <a href="./../glib/glib/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *signal_name,
- <a class="link" href="gobject-Type-Information.html#GType" title="GType"><span class="returnvalue">GType</span></a> itype,
- <a class="link" href="gobject-Signals.html#GSignalFlags" title="enum GSignalFlags"><span class="returnvalue">GSignalFlags</span></a> signal_flags,
- <a class="link" href="gobject-Closures.html#GClosure" title="GClosure"><span class="returnvalue">GClosure</span></a> *class_closure,
- <a class="link" href="gobject-Signals.html#GSignalAccumulator" title="GSignalAccumulator ()"><span class="returnvalue">GSignalAccumulator</span></a> accumulator,
- <a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a> accu_data,
- <a class="link" href="gobject-Signals.html#GSignalCMarshaller" title="GSignalCMarshaller"><span class="returnvalue">GSignalCMarshaller</span></a> c_marshaller,
- <a class="link" href="gobject-Type-Information.html#GType" title="GType"><span class="returnvalue">GType</span></a> return_type,
- <a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> n_params,
- <a class="link" href="gobject-Type-Information.html#GType" title="GType"><span class="returnvalue">GType</span></a> *param_types);
-<a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> <a class="link" href="gobject-Signals.html#g-signal-new-valist" title="g_signal_new_valist ()">g_signal_new_valist</a> (const <a href="./../glib/glib/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *signal_name,
- <a class="link" href="gobject-Type-Information.html#GType" title="GType"><span class="returnvalue">GType</span></a> itype,
- <a class="link" href="gobject-Signals.html#GSignalFlags" title="enum GSignalFlags"><span class="returnvalue">GSignalFlags</span></a> signal_flags,
- <a class="link" href="gobject-Closures.html#GClosure" title="GClosure"><span class="returnvalue">GClosure</span></a> *class_closure,
- <a class="link" href="gobject-Signals.html#GSignalAccumulator" title="GSignalAccumulator ()"><span class="returnvalue">GSignalAccumulator</span></a> accumulator,
- <a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a> accu_data,
- <a class="link" href="gobject-Signals.html#GSignalCMarshaller" title="GSignalCMarshaller"><span class="returnvalue">GSignalCMarshaller</span></a> c_marshaller,
- <a class="link" href="gobject-Type-Information.html#GType" title="GType"><span class="returnvalue">GType</span></a> return_type,
- <a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> n_params,
- <span class="returnvalue">va_list</span> args);
-<span class="returnvalue">void</span> <a class="link" href="gobject-Signals.html#g-signal-query" title="g_signal_query ()">g_signal_query</a> (<a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> signal_id,
- <a class="link" href="gobject-Signals.html#GSignalQuery" title="GSignalQuery"><span class="returnvalue">GSignalQuery</span></a> *query);
-<a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> <a class="link" href="gobject-Signals.html#g-signal-lookup" title="g_signal_lookup ()">g_signal_lookup</a> (const <a href="./../glib/glib/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *name,
- <a class="link" href="gobject-Type-Information.html#GType" title="GType"><span class="returnvalue">GType</span></a> itype);
-const <a href="./../glib/glib/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a>* <a class="link" href="gobject-Signals.html#g-signal-name" title="g_signal_name ()">g_signal_name</a> (<a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> signal_id);
-<a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a>* <a class="link" href="gobject-Signals.html#g-signal-list-ids" title="g_signal_list_ids ()">g_signal_list_ids</a> (<a class="link" href="gobject-Type-Information.html#GType" title="GType"><span class="returnvalue">GType</span></a> itype,
- <a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> *n_ids);
-<span class="returnvalue">void</span> <a class="link" href="gobject-Signals.html#g-signal-emit" title="g_signal_emit ()">g_signal_emit</a> (<a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a> instance,
- <a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> signal_id,
- <a href="./../glib/glib/glib-Quarks.html#GQuark"><span class="returnvalue">GQuark</span></a> detail,
- ...);
-<span class="returnvalue">void</span> <a class="link" href="gobject-Signals.html#g-signal-emit-by-name" title="g_signal_emit_by_name ()">g_signal_emit_by_name</a> (<a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a> instance,
- const <a href="./../glib/glib/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *detailed_signal,
- ...);
-<span class="returnvalue">void</span> <a class="link" href="gobject-Signals.html#g-signal-emitv" title="g_signal_emitv ()">g_signal_emitv</a> (const <a class="link" href="gobject-Generic-values.html#GValue" title="GValue"><span class="returnvalue">GValue</span></a> *instance_and_params,
- <a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> signal_id,
- <a href="./../glib/glib/glib-Quarks.html#GQuark"><span class="returnvalue">GQuark</span></a> detail,
- <a class="link" href="gobject-Generic-values.html#GValue" title="GValue"><span class="returnvalue">GValue</span></a> *return_value);
-<span class="returnvalue">void</span> <a class="link" href="gobject-Signals.html#g-signal-emit-valist" title="g_signal_emit_valist ()">g_signal_emit_valist</a> (<a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a> instance,
- <a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> signal_id,
- <a href="./../glib/glib/glib-Quarks.html#GQuark"><span class="returnvalue">GQuark</span></a> detail,
- <span class="returnvalue">va_list</span> var_args);
-#define <a class="link" href="gobject-Signals.html#g-signal-connect" title="g_signal_connect()">g_signal_connect</a> (instance, detailed_signal, c_handler, data)
-#define <a class="link" href="gobject-Signals.html#g-signal-connect-after" title="g_signal_connect_after()">g_signal_connect_after</a> (instance, detailed_signal, c_handler, data)
-#define <a class="link" href="gobject-Signals.html#g-signal-connect-swapped" title="g_signal_connect_swapped()">g_signal_connect_swapped</a> (instance, detailed_signal, c_handler, data)
-<a href="./../glib/glib/glib-Basic-Types.html#gulong"><span class="returnvalue">gulong</span></a> <a class="link" href="gobject-Signals.html#g-signal-connect-object" title="g_signal_connect_object ()">g_signal_connect_object</a> (<a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a> instance,
- const <a href="./../glib/glib/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *detailed_signal,
- <a class="link" href="gobject-Closures.html#GCallback" title="GCallback ()"><span class="returnvalue">GCallback</span></a> c_handler,
- <a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a> gobject,
- <a class="link" href="gobject-Signals.html#GConnectFlags" title="enum GConnectFlags"><span class="returnvalue">GConnectFlags</span></a> connect_flags);
+<a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> <a class="link" href="gobject-Signals.html#g-signal-new" title="g_signal_new ()">g_signal_new</a> (<em class="parameter"><code>const <a href="./../glib/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *signal_name</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Type-Information.html#GType" title="GType"><span class="type">GType</span></a> itype</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Signals.html#GSignalFlags" title="enum GSignalFlags"><span class="type">GSignalFlags</span></a> signal_flags</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> class_offset</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Signals.html#GSignalAccumulator" title="GSignalAccumulator ()"><span class="type">GSignalAccumulator</span></a> accumulator</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> accu_data</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Signals.html#GSignalCMarshaller" title="GSignalCMarshaller"><span class="type">GSignalCMarshaller</span></a> c_marshaller</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Type-Information.html#GType" title="GType"><span class="type">GType</span></a> return_type</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> n_params</code></em>,
+ <em class="parameter"><code>...</code></em>);
+<a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> <a class="link" href="gobject-Signals.html#g-signal-newv" title="g_signal_newv ()">g_signal_newv</a> (<em class="parameter"><code>const <a href="./../glib/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *signal_name</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Type-Information.html#GType" title="GType"><span class="type">GType</span></a> itype</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Signals.html#GSignalFlags" title="enum GSignalFlags"><span class="type">GSignalFlags</span></a> signal_flags</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Closures.html#GClosure" title="struct GClosure"><span class="type">GClosure</span></a> *class_closure</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Signals.html#GSignalAccumulator" title="GSignalAccumulator ()"><span class="type">GSignalAccumulator</span></a> accumulator</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> accu_data</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Signals.html#GSignalCMarshaller" title="GSignalCMarshaller"><span class="type">GSignalCMarshaller</span></a> c_marshaller</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Type-Information.html#GType" title="GType"><span class="type">GType</span></a> return_type</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> n_params</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Type-Information.html#GType" title="GType"><span class="type">GType</span></a> *param_types</code></em>);
+<a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> <a class="link" href="gobject-Signals.html#g-signal-new-valist" title="g_signal_new_valist ()">g_signal_new_valist</a> (<em class="parameter"><code>const <a href="./../glib/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *signal_name</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Type-Information.html#GType" title="GType"><span class="type">GType</span></a> itype</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Signals.html#GSignalFlags" title="enum GSignalFlags"><span class="type">GSignalFlags</span></a> signal_flags</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Closures.html#GClosure" title="struct GClosure"><span class="type">GClosure</span></a> *class_closure</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Signals.html#GSignalAccumulator" title="GSignalAccumulator ()"><span class="type">GSignalAccumulator</span></a> accumulator</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> accu_data</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Signals.html#GSignalCMarshaller" title="GSignalCMarshaller"><span class="type">GSignalCMarshaller</span></a> c_marshaller</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Type-Information.html#GType" title="GType"><span class="type">GType</span></a> return_type</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> n_params</code></em>,
+ <em class="parameter"><code><span class="type">va_list</span> args</code></em>);
+<span class="returnvalue">void</span> <a class="link" href="gobject-Signals.html#g-signal-query" title="g_signal_query ()">g_signal_query</a> (<em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> signal_id</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Signals.html#GSignalQuery" title="struct GSignalQuery"><span class="type">GSignalQuery</span></a> *query</code></em>);
+<a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> <a class="link" href="gobject-Signals.html#g-signal-lookup" title="g_signal_lookup ()">g_signal_lookup</a> (<em class="parameter"><code>const <a href="./../glib/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *name</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Type-Information.html#GType" title="GType"><span class="type">GType</span></a> itype</code></em>);
+const <a href="./../glib/glib/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> * <a class="link" href="gobject-Signals.html#g-signal-name" title="g_signal_name ()">g_signal_name</a> (<em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> signal_id</code></em>);
+<a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> * <a class="link" href="gobject-Signals.html#g-signal-list-ids" title="g_signal_list_ids ()">g_signal_list_ids</a> (<em class="parameter"><code><a class="link" href="gobject-Type-Information.html#GType" title="GType"><span class="type">GType</span></a> itype</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> *n_ids</code></em>);
+<span class="returnvalue">void</span> <a class="link" href="gobject-Signals.html#g-signal-emit" title="g_signal_emit ()">g_signal_emit</a> (<em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> instance</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> signal_id</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Quarks.html#GQuark"><span class="type">GQuark</span></a> detail</code></em>,
+ <em class="parameter"><code>...</code></em>);
+<span class="returnvalue">void</span> <a class="link" href="gobject-Signals.html#g-signal-emit-by-name" title="g_signal_emit_by_name ()">g_signal_emit_by_name</a> (<em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> instance</code></em>,
+ <em class="parameter"><code>const <a href="./../glib/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *detailed_signal</code></em>,
+ <em class="parameter"><code>...</code></em>);
+<span class="returnvalue">void</span> <a class="link" href="gobject-Signals.html#g-signal-emitv" title="g_signal_emitv ()">g_signal_emitv</a> (<em class="parameter"><code>const <a class="link" href="gobject-Generic-values.html#GValue" title="GValue"><span class="type">GValue</span></a> *instance_and_params</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> signal_id</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Quarks.html#GQuark"><span class="type">GQuark</span></a> detail</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Generic-values.html#GValue" title="GValue"><span class="type">GValue</span></a> *return_value</code></em>);
+<span class="returnvalue">void</span> <a class="link" href="gobject-Signals.html#g-signal-emit-valist" title="g_signal_emit_valist ()">g_signal_emit_valist</a> (<em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> instance</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> signal_id</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Quarks.html#GQuark"><span class="type">GQuark</span></a> detail</code></em>,
+ <em class="parameter"><code><span class="type">va_list</span> var_args</code></em>);
+#define <a class="link" href="gobject-Signals.html#g-signal-connect" title="g_signal_connect()">g_signal_connect</a> (instance,
+ detailed_signal,
+ c_handler,
+ data)
+#define <a class="link" href="gobject-Signals.html#g-signal-connect-after" title="g_signal_connect_after()">g_signal_connect_after</a> (instance,
+ detailed_signal,
+ c_handler,
+ data)
+#define <a class="link" href="gobject-Signals.html#g-signal-connect-swapped" title="g_signal_connect_swapped()">g_signal_connect_swapped</a> (instance,
+ detailed_signal,
+ c_handler,
+ data)
+<a href="./../glib/glib/glib-Basic-Types.html#gulong"><span class="returnvalue">gulong</span></a> <a class="link" href="gobject-Signals.html#g-signal-connect-object" title="g_signal_connect_object ()">g_signal_connect_object</a> (<em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> instance</code></em>,
+ <em class="parameter"><code>const <a href="./../glib/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *detailed_signal</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Closures.html#GCallback" title="GCallback ()"><span class="type">GCallback</span></a> c_handler</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> gobject</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Signals.html#GConnectFlags" title="enum GConnectFlags"><span class="type">GConnectFlags</span></a> connect_flags</code></em>);
enum <a class="link" href="gobject-Signals.html#GConnectFlags" title="enum GConnectFlags">GConnectFlags</a>;
-<a href="./../glib/glib/glib-Basic-Types.html#gulong"><span class="returnvalue">gulong</span></a> <a class="link" href="gobject-Signals.html#g-signal-connect-data" title="g_signal_connect_data ()">g_signal_connect_data</a> (<a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a> instance,
- const <a href="./../glib/glib/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *detailed_signal,
- <a class="link" href="gobject-Closures.html#GCallback" title="GCallback ()"><span class="returnvalue">GCallback</span></a> c_handler,
- <a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a> data,
- <a class="link" href="gobject-Closures.html#GClosureNotify" title="GClosureNotify ()"><span class="returnvalue">GClosureNotify</span></a> destroy_data,
- <a class="link" href="gobject-Signals.html#GConnectFlags" title="enum GConnectFlags"><span class="returnvalue">GConnectFlags</span></a> connect_flags);
-<a href="./../glib/glib/glib-Basic-Types.html#gulong"><span class="returnvalue">gulong</span></a> <a class="link" href="gobject-Signals.html#g-signal-connect-closure" title="g_signal_connect_closure ()">g_signal_connect_closure</a> (<a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a> instance,
- const <a href="./../glib/glib/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *detailed_signal,
- <a class="link" href="gobject-Closures.html#GClosure" title="GClosure"><span class="returnvalue">GClosure</span></a> *closure,
- <a href="./../glib/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> after);
-<a href="./../glib/glib/glib-Basic-Types.html#gulong"><span class="returnvalue">gulong</span></a> <a class="link" href="gobject-Signals.html#g-signal-connect-closure-by-id" title="g_signal_connect_closure_by_id ()">g_signal_connect_closure_by_id</a> (<a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a> instance,
- <a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> signal_id,
- <a href="./../glib/glib/glib-Quarks.html#GQuark"><span class="returnvalue">GQuark</span></a> detail,
- <a class="link" href="gobject-Closures.html#GClosure" title="GClosure"><span class="returnvalue">GClosure</span></a> *closure,
- <a href="./../glib/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> after);
-<span class="returnvalue">void</span> <a class="link" href="gobject-Signals.html#g-signal-handler-block" title="g_signal_handler_block ()">g_signal_handler_block</a> (<a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a> instance,
- <a href="./../glib/glib/glib-Basic-Types.html#gulong"><span class="returnvalue">gulong</span></a> handler_id);
-<span class="returnvalue">void</span> <a class="link" href="gobject-Signals.html#g-signal-handler-unblock" title="g_signal_handler_unblock ()">g_signal_handler_unblock</a> (<a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a> instance,
- <a href="./../glib/glib/glib-Basic-Types.html#gulong"><span class="returnvalue">gulong</span></a> handler_id);
-<span class="returnvalue">void</span> <a class="link" href="gobject-Signals.html#g-signal-handler-disconnect" title="g_signal_handler_disconnect ()">g_signal_handler_disconnect</a> (<a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a> instance,
- <a href="./../glib/glib/glib-Basic-Types.html#gulong"><span class="returnvalue">gulong</span></a> handler_id);
-<a href="./../glib/glib/glib-Basic-Types.html#gulong"><span class="returnvalue">gulong</span></a> <a class="link" href="gobject-Signals.html#g-signal-handler-find" title="g_signal_handler_find ()">g_signal_handler_find</a> (<a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a> instance,
- <a class="link" href="gobject-Signals.html#GSignalMatchType" title="enum GSignalMatchType"><span class="returnvalue">GSignalMatchType</span></a> mask,
- <a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> signal_id,
- <a href="./../glib/glib/glib-Quarks.html#GQuark"><span class="returnvalue">GQuark</span></a> detail,
- <a class="link" href="gobject-Closures.html#GClosure" title="GClosure"><span class="returnvalue">GClosure</span></a> *closure,
- <a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a> func,
- <a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a> data);
-<a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> <a class="link" href="gobject-Signals.html#g-signal-handlers-block-matched" title="g_signal_handlers_block_matched ()">g_signal_handlers_block_matched</a> (<a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a> instance,
- <a class="link" href="gobject-Signals.html#GSignalMatchType" title="enum GSignalMatchType"><span class="returnvalue">GSignalMatchType</span></a> mask,
- <a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> signal_id,
- <a href="./../glib/glib/glib-Quarks.html#GQuark"><span class="returnvalue">GQuark</span></a> detail,
- <a class="link" href="gobject-Closures.html#GClosure" title="GClosure"><span class="returnvalue">GClosure</span></a> *closure,
- <a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a> func,
- <a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a> data);
-<a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> <a class="link" href="gobject-Signals.html#g-signal-handlers-unblock-matched" title="g_signal_handlers_unblock_matched ()">g_signal_handlers_unblock_matched</a> (<a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a> instance,
- <a class="link" href="gobject-Signals.html#GSignalMatchType" title="enum GSignalMatchType"><span class="returnvalue">GSignalMatchType</span></a> mask,
- <a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> signal_id,
- <a href="./../glib/glib/glib-Quarks.html#GQuark"><span class="returnvalue">GQuark</span></a> detail,
- <a class="link" href="gobject-Closures.html#GClosure" title="GClosure"><span class="returnvalue">GClosure</span></a> *closure,
- <a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a> func,
- <a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a> data);
+<a href="./../glib/glib/glib-Basic-Types.html#gulong"><span class="returnvalue">gulong</span></a> <a class="link" href="gobject-Signals.html#g-signal-connect-data" title="g_signal_connect_data ()">g_signal_connect_data</a> (<em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> instance</code></em>,
+ <em class="parameter"><code>const <a href="./../glib/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *detailed_signal</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Closures.html#GCallback" title="GCallback ()"><span class="type">GCallback</span></a> c_handler</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> data</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Closures.html#GClosureNotify" title="GClosureNotify ()"><span class="type">GClosureNotify</span></a> destroy_data</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Signals.html#GConnectFlags" title="enum GConnectFlags"><span class="type">GConnectFlags</span></a> connect_flags</code></em>);
+<a href="./../glib/glib/glib-Basic-Types.html#gulong"><span class="returnvalue">gulong</span></a> <a class="link" href="gobject-Signals.html#g-signal-connect-closure" title="g_signal_connect_closure ()">g_signal_connect_closure</a> (<em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> instance</code></em>,
+ <em class="parameter"><code>const <a href="./../glib/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *detailed_signal</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Closures.html#GClosure" title="struct GClosure"><span class="type">GClosure</span></a> *closure</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> after</code></em>);
+<a href="./../glib/glib/glib-Basic-Types.html#gulong"><span class="returnvalue">gulong</span></a> <a class="link" href="gobject-Signals.html#g-signal-connect-closure-by-id" title="g_signal_connect_closure_by_id ()">g_signal_connect_closure_by_id</a> (<em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> instance</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> signal_id</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Quarks.html#GQuark"><span class="type">GQuark</span></a> detail</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Closures.html#GClosure" title="struct GClosure"><span class="type">GClosure</span></a> *closure</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> after</code></em>);
+<span class="returnvalue">void</span> <a class="link" href="gobject-Signals.html#g-signal-handler-block" title="g_signal_handler_block ()">g_signal_handler_block</a> (<em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> instance</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gulong"><span class="type">gulong</span></a> handler_id</code></em>);
+<span class="returnvalue">void</span> <a class="link" href="gobject-Signals.html#g-signal-handler-unblock" title="g_signal_handler_unblock ()">g_signal_handler_unblock</a> (<em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> instance</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gulong"><span class="type">gulong</span></a> handler_id</code></em>);
+<span class="returnvalue">void</span> <a class="link" href="gobject-Signals.html#g-signal-handler-disconnect" title="g_signal_handler_disconnect ()">g_signal_handler_disconnect</a> (<em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> instance</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gulong"><span class="type">gulong</span></a> handler_id</code></em>);
+<a href="./../glib/glib/glib-Basic-Types.html#gulong"><span class="returnvalue">gulong</span></a> <a class="link" href="gobject-Signals.html#g-signal-handler-find" title="g_signal_handler_find ()">g_signal_handler_find</a> (<em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> instance</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Signals.html#GSignalMatchType" title="enum GSignalMatchType"><span class="type">GSignalMatchType</span></a> mask</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> signal_id</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Quarks.html#GQuark"><span class="type">GQuark</span></a> detail</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Closures.html#GClosure" title="struct GClosure"><span class="type">GClosure</span></a> *closure</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> func</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> data</code></em>);
+<a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> <a class="link" href="gobject-Signals.html#g-signal-handlers-block-matched" title="g_signal_handlers_block_matched ()">g_signal_handlers_block_matched</a> (<em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> instance</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Signals.html#GSignalMatchType" title="enum GSignalMatchType"><span class="type">GSignalMatchType</span></a> mask</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> signal_id</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Quarks.html#GQuark"><span class="type">GQuark</span></a> detail</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Closures.html#GClosure" title="struct GClosure"><span class="type">GClosure</span></a> *closure</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> func</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> data</code></em>);
+<a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> <a class="link" href="gobject-Signals.html#g-signal-handlers-unblock-matched" title="g_signal_handlers_unblock_matched ()">g_signal_handlers_unblock_matched</a> (<em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> instance</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Signals.html#GSignalMatchType" title="enum GSignalMatchType"><span class="type">GSignalMatchType</span></a> mask</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> signal_id</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Quarks.html#GQuark"><span class="type">GQuark</span></a> detail</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Closures.html#GClosure" title="struct GClosure"><span class="type">GClosure</span></a> *closure</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> func</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> data</code></em>);
<a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> <a class="link" href="gobject-Signals.html#g-signal-handlers-disconnect-matched" title="g_signal_handlers_disconnect_matched ()">g_signal_handlers_disconnect_matched</a>
- (<a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a> instance,
- <a class="link" href="gobject-Signals.html#GSignalMatchType" title="enum GSignalMatchType"><span class="returnvalue">GSignalMatchType</span></a> mask,
- <a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> signal_id,
- <a href="./../glib/glib/glib-Quarks.html#GQuark"><span class="returnvalue">GQuark</span></a> detail,
- <a class="link" href="gobject-Closures.html#GClosure" title="GClosure"><span class="returnvalue">GClosure</span></a> *closure,
- <a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a> func,
- <a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a> data);
-<a href="./../glib/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> <a class="link" href="gobject-Signals.html#g-signal-handler-is-connected" title="g_signal_handler_is_connected ()">g_signal_handler_is_connected</a> (<a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a> instance,
- <a href="./../glib/glib/glib-Basic-Types.html#gulong"><span class="returnvalue">gulong</span></a> handler_id);
-#define <a class="link" href="gobject-Signals.html#g-signal-handlers-block-by-func" title="g_signal_handlers_block_by_func()">g_signal_handlers_block_by_func</a> (instance, func, data)
-#define <a class="link" href="gobject-Signals.html#g-signal-handlers-unblock-by-func" title="g_signal_handlers_unblock_by_func()">g_signal_handlers_unblock_by_func</a> (instance, func, data)
-#define <a class="link" href="gobject-Signals.html#g-signal-handlers-disconnect-by-func" title="g_signal_handlers_disconnect_by_func()">g_signal_handlers_disconnect_by_func</a>(instance, func, data)
-<a href="./../glib/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> <a class="link" href="gobject-Signals.html#g-signal-has-handler-pending" title="g_signal_has_handler_pending ()">g_signal_has_handler_pending</a> (<a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a> instance,
- <a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> signal_id,
- <a href="./../glib/glib/glib-Quarks.html#GQuark"><span class="returnvalue">GQuark</span></a> detail,
- <a href="./../glib/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> may_be_blocked);
-<span class="returnvalue">void</span> <a class="link" href="gobject-Signals.html#g-signal-stop-emission" title="g_signal_stop_emission ()">g_signal_stop_emission</a> (<a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a> instance,
- <a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> signal_id,
- <a href="./../glib/glib/glib-Quarks.html#GQuark"><span class="returnvalue">GQuark</span></a> detail);
-<span class="returnvalue">void</span> <a class="link" href="gobject-Signals.html#g-signal-stop-emission-by-name" title="g_signal_stop_emission_by_name ()">g_signal_stop_emission_by_name</a> (<a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a> instance,
- const <a href="./../glib/glib/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *detailed_signal);
-<span class="returnvalue">void</span> <a class="link" href="gobject-Signals.html#g-signal-override-class-closure" title="g_signal_override_class_closure ()">g_signal_override_class_closure</a> (<a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> signal_id,
- <a class="link" href="gobject-Type-Information.html#GType" title="GType"><span class="returnvalue">GType</span></a> instance_type,
- <a class="link" href="gobject-Closures.html#GClosure" title="GClosure"><span class="returnvalue">GClosure</span></a> *class_closure);
-<span class="returnvalue">void</span> <a class="link" href="gobject-Signals.html#g-signal-chain-from-overridden" title="g_signal_chain_from_overridden ()">g_signal_chain_from_overridden</a> (const <a class="link" href="gobject-Generic-values.html#GValue" title="GValue"><span class="returnvalue">GValue</span></a> *instance_and_params,
- <a class="link" href="gobject-Generic-values.html#GValue" title="GValue"><span class="returnvalue">GValue</span></a> *return_value);
-<a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> <a class="link" href="gobject-Signals.html#g-signal-new-class-handler" title="g_signal_new_class_handler ()">g_signal_new_class_handler</a> (const <a href="./../glib/glib/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *signal_name,
- <a class="link" href="gobject-Type-Information.html#GType" title="GType"><span class="returnvalue">GType</span></a> itype,
- <a class="link" href="gobject-Signals.html#GSignalFlags" title="enum GSignalFlags"><span class="returnvalue">GSignalFlags</span></a> signal_flags,
- <a class="link" href="gobject-Closures.html#GCallback" title="GCallback ()"><span class="returnvalue">GCallback</span></a> class_handler,
- <a class="link" href="gobject-Signals.html#GSignalAccumulator" title="GSignalAccumulator ()"><span class="returnvalue">GSignalAccumulator</span></a> accumulator,
- <a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a> accu_data,
- <a class="link" href="gobject-Signals.html#GSignalCMarshaller" title="GSignalCMarshaller"><span class="returnvalue">GSignalCMarshaller</span></a> c_marshaller,
- <a class="link" href="gobject-Type-Information.html#GType" title="GType"><span class="returnvalue">GType</span></a> return_type,
- <a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> n_params,
- ...);
-<span class="returnvalue">void</span> <a class="link" href="gobject-Signals.html#g-signal-override-class-handler" title="g_signal_override_class_handler ()">g_signal_override_class_handler</a> (const <a href="./../glib/glib/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *signal_name,
- <a class="link" href="gobject-Type-Information.html#GType" title="GType"><span class="returnvalue">GType</span></a> instance_type,
- <a class="link" href="gobject-Closures.html#GCallback" title="GCallback ()"><span class="returnvalue">GCallback</span></a> class_handler);
+ (<em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> instance</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Signals.html#GSignalMatchType" title="enum GSignalMatchType"><span class="type">GSignalMatchType</span></a> mask</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> signal_id</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Quarks.html#GQuark"><span class="type">GQuark</span></a> detail</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Closures.html#GClosure" title="struct GClosure"><span class="type">GClosure</span></a> *closure</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> func</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> data</code></em>);
+<a href="./../glib/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> <a class="link" href="gobject-Signals.html#g-signal-handler-is-connected" title="g_signal_handler_is_connected ()">g_signal_handler_is_connected</a> (<em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> instance</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gulong"><span class="type">gulong</span></a> handler_id</code></em>);
+#define <a class="link" href="gobject-Signals.html#g-signal-handlers-block-by-func" title="g_signal_handlers_block_by_func()">g_signal_handlers_block_by_func</a> (instance,
+ func,
+ data)
+#define <a class="link" href="gobject-Signals.html#g-signal-handlers-unblock-by-func" title="g_signal_handlers_unblock_by_func()">g_signal_handlers_unblock_by_func</a> (instance,
+ func,
+ data)
+#define <a class="link" href="gobject-Signals.html#g-signal-handlers-disconnect-by-func" title="g_signal_handlers_disconnect_by_func()">g_signal_handlers_disconnect_by_func</a>(instance,
+ func,
+ data)
+#define <a class="link" href="gobject-Signals.html#g-signal-handlers-disconnect-by-data" title="g_signal_handlers_disconnect_by_data()">g_signal_handlers_disconnect_by_data</a>(instance,
+ data)
+<a href="./../glib/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> <a class="link" href="gobject-Signals.html#g-signal-has-handler-pending" title="g_signal_has_handler_pending ()">g_signal_has_handler_pending</a> (<em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> instance</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> signal_id</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Quarks.html#GQuark"><span class="type">GQuark</span></a> detail</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> may_be_blocked</code></em>);
+<span class="returnvalue">void</span> <a class="link" href="gobject-Signals.html#g-signal-stop-emission" title="g_signal_stop_emission ()">g_signal_stop_emission</a> (<em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> instance</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> signal_id</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Quarks.html#GQuark"><span class="type">GQuark</span></a> detail</code></em>);
+<span class="returnvalue">void</span> <a class="link" href="gobject-Signals.html#g-signal-stop-emission-by-name" title="g_signal_stop_emission_by_name ()">g_signal_stop_emission_by_name</a> (<em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> instance</code></em>,
+ <em class="parameter"><code>const <a href="./../glib/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *detailed_signal</code></em>);
+<span class="returnvalue">void</span> <a class="link" href="gobject-Signals.html#g-signal-override-class-closure" title="g_signal_override_class_closure ()">g_signal_override_class_closure</a> (<em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> signal_id</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Type-Information.html#GType" title="GType"><span class="type">GType</span></a> instance_type</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Closures.html#GClosure" title="struct GClosure"><span class="type">GClosure</span></a> *class_closure</code></em>);
+<span class="returnvalue">void</span> <a class="link" href="gobject-Signals.html#g-signal-chain-from-overridden" title="g_signal_chain_from_overridden ()">g_signal_chain_from_overridden</a> (<em class="parameter"><code>const <a class="link" href="gobject-Generic-values.html#GValue" title="GValue"><span class="type">GValue</span></a> *instance_and_params</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Generic-values.html#GValue" title="GValue"><span class="type">GValue</span></a> *return_value</code></em>);
+<a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> <a class="link" href="gobject-Signals.html#g-signal-new-class-handler" title="g_signal_new_class_handler ()">g_signal_new_class_handler</a> (<em class="parameter"><code>const <a href="./../glib/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *signal_name</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Type-Information.html#GType" title="GType"><span class="type">GType</span></a> itype</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Signals.html#GSignalFlags" title="enum GSignalFlags"><span class="type">GSignalFlags</span></a> signal_flags</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Closures.html#GCallback" title="GCallback ()"><span class="type">GCallback</span></a> class_handler</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Signals.html#GSignalAccumulator" title="GSignalAccumulator ()"><span class="type">GSignalAccumulator</span></a> accumulator</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> accu_data</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Signals.html#GSignalCMarshaller" title="GSignalCMarshaller"><span class="type">GSignalCMarshaller</span></a> c_marshaller</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Type-Information.html#GType" title="GType"><span class="type">GType</span></a> return_type</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> n_params</code></em>,
+ <em class="parameter"><code>...</code></em>);
+<span class="returnvalue">void</span> <a class="link" href="gobject-Signals.html#g-signal-override-class-handler" title="g_signal_override_class_handler ()">g_signal_override_class_handler</a> (<em class="parameter"><code>const <a href="./../glib/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *signal_name</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Type-Information.html#GType" title="GType"><span class="type">GType</span></a> instance_type</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Closures.html#GCallback" title="GCallback ()"><span class="type">GCallback</span></a> class_handler</code></em>);
<span class="returnvalue">void</span> <a class="link" href="gobject-Signals.html#g-signal-chain-from-overridden-handler" title="g_signal_chain_from_overridden_handler ()">g_signal_chain_from_overridden_handler</a>
- (<a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a> instance,
- ...);
-<a href="./../glib/glib/glib-Basic-Types.html#gulong"><span class="returnvalue">gulong</span></a> <a class="link" href="gobject-Signals.html#g-signal-add-emission-hook" title="g_signal_add_emission_hook ()">g_signal_add_emission_hook</a> (<a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> signal_id,
- <a href="./../glib/glib/glib-Quarks.html#GQuark"><span class="returnvalue">GQuark</span></a> detail,
- <a class="link" href="gobject-Signals.html#GSignalEmissionHook" title="GSignalEmissionHook ()"><span class="returnvalue">GSignalEmissionHook</span></a> hook_func,
- <a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a> hook_data,
- <a href="./../glib/glib/glib-Datasets.html#GDestroyNotify"><span class="returnvalue">GDestroyNotify</span></a> data_destroy);
-<span class="returnvalue">void</span> <a class="link" href="gobject-Signals.html#g-signal-remove-emission-hook" title="g_signal_remove_emission_hook ()">g_signal_remove_emission_hook</a> (<a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> signal_id,
- <a href="./../glib/glib/glib-Basic-Types.html#gulong"><span class="returnvalue">gulong</span></a> hook_id);
-<a href="./../glib/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> <a class="link" href="gobject-Signals.html#g-signal-parse-name" title="g_signal_parse_name ()">g_signal_parse_name</a> (const <a href="./../glib/glib/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *detailed_signal,
- <a class="link" href="gobject-Type-Information.html#GType" title="GType"><span class="returnvalue">GType</span></a> itype,
- <a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> *signal_id_p,
- <a href="./../glib/glib/glib-Quarks.html#GQuark"><span class="returnvalue">GQuark</span></a> *detail_p,
- <a href="./../glib/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> force_detail_quark);
-<a class="link" href="gobject-Signals.html#GSignalInvocationHint" title="GSignalInvocationHint"><span class="returnvalue">GSignalInvocationHint</span></a>* <a class="link" href="gobject-Signals.html#g-signal-get-invocation-hint" title="g_signal_get_invocation_hint ()">g_signal_get_invocation_hint</a> (<a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a> instance);
-<a class="link" href="gobject-Closures.html#GClosure" title="GClosure"><span class="returnvalue">GClosure</span></a>* <a class="link" href="gobject-Signals.html#g-signal-type-cclosure-new" title="g_signal_type_cclosure_new ()">g_signal_type_cclosure_new</a> (<a class="link" href="gobject-Type-Information.html#GType" title="GType"><span class="returnvalue">GType</span></a> itype,
- <a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> struct_offset);
-<a href="./../glib/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> <a class="link" href="gobject-Signals.html#g-signal-accumulator-true-handled" title="g_signal_accumulator_true_handled ()">g_signal_accumulator_true_handled</a> (<a class="link" href="gobject-Signals.html#GSignalInvocationHint" title="GSignalInvocationHint"><span class="returnvalue">GSignalInvocationHint</span></a> *ihint,
- <a class="link" href="gobject-Generic-values.html#GValue" title="GValue"><span class="returnvalue">GValue</span></a> *return_accu,
- const <a class="link" href="gobject-Generic-values.html#GValue" title="GValue"><span class="returnvalue">GValue</span></a> *handler_return,
- <a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a> dummy);
+ (<em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> instance</code></em>,
+ <em class="parameter"><code>...</code></em>);
+<a href="./../glib/glib/glib-Basic-Types.html#gulong"><span class="returnvalue">gulong</span></a> <a class="link" href="gobject-Signals.html#g-signal-add-emission-hook" title="g_signal_add_emission_hook ()">g_signal_add_emission_hook</a> (<em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> signal_id</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Quarks.html#GQuark"><span class="type">GQuark</span></a> detail</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Signals.html#GSignalEmissionHook" title="GSignalEmissionHook ()"><span class="type">GSignalEmissionHook</span></a> hook_func</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> hook_data</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Datasets.html#GDestroyNotify"><span class="type">GDestroyNotify</span></a> data_destroy</code></em>);
+<span class="returnvalue">void</span> <a class="link" href="gobject-Signals.html#g-signal-remove-emission-hook" title="g_signal_remove_emission_hook ()">g_signal_remove_emission_hook</a> (<em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> signal_id</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gulong"><span class="type">gulong</span></a> hook_id</code></em>);
+<a href="./../glib/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> <a class="link" href="gobject-Signals.html#g-signal-parse-name" title="g_signal_parse_name ()">g_signal_parse_name</a> (<em class="parameter"><code>const <a href="./../glib/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *detailed_signal</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Type-Information.html#GType" title="GType"><span class="type">GType</span></a> itype</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> *signal_id_p</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Quarks.html#GQuark"><span class="type">GQuark</span></a> *detail_p</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> force_detail_quark</code></em>);
+<a class="link" href="gobject-Signals.html#GSignalInvocationHint" title="struct GSignalInvocationHint"><span class="returnvalue">GSignalInvocationHint</span></a> * <a class="link" href="gobject-Signals.html#g-signal-get-invocation-hint" title="g_signal_get_invocation_hint ()">g_signal_get_invocation_hint</a> (<em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> instance</code></em>);
+<a class="link" href="gobject-Closures.html#GClosure" title="struct GClosure"><span class="returnvalue">GClosure</span></a> * <a class="link" href="gobject-Signals.html#g-signal-type-cclosure-new" title="g_signal_type_cclosure_new ()">g_signal_type_cclosure_new</a> (<em class="parameter"><code><a class="link" href="gobject-Type-Information.html#GType" title="GType"><span class="type">GType</span></a> itype</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> struct_offset</code></em>);
+<a href="./../glib/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> <a class="link" href="gobject-Signals.html#g-signal-accumulator-first-wins" title="g_signal_accumulator_first_wins ()">g_signal_accumulator_first_wins</a> (<em class="parameter"><code><a class="link" href="gobject-Signals.html#GSignalInvocationHint" title="struct GSignalInvocationHint"><span class="type">GSignalInvocationHint</span></a> *ihint</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Generic-values.html#GValue" title="GValue"><span class="type">GValue</span></a> *return_accu</code></em>,
+ <em class="parameter"><code>const <a class="link" href="gobject-Generic-values.html#GValue" title="GValue"><span class="type">GValue</span></a> *handler_return</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> dummy</code></em>);
+<a href="./../glib/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> <a class="link" href="gobject-Signals.html#g-signal-accumulator-true-handled" title="g_signal_accumulator_true_handled ()">g_signal_accumulator_true_handled</a> (<em class="parameter"><code><a class="link" href="gobject-Signals.html#GSignalInvocationHint" title="struct GSignalInvocationHint"><span class="type">GSignalInvocationHint</span></a> *ihint</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Generic-values.html#GValue" title="GValue"><span class="type">GValue</span></a> *return_accu</code></em>,
+ <em class="parameter"><code>const <a class="link" href="gobject-Generic-values.html#GValue" title="GValue"><span class="type">GValue</span></a> *handler_return</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> dummy</code></em>);
</pre>
</div>
-<div class="refsect1" title="Description">
+<div class="refsect1">
<a name="gobject-Signals.description"></a><h2>Description</h2>
<p>
The basic concept of the signal system is that of the
emission mainly involves invocation of a certain set of callbacks
in precisely defined manner. There are two main categories of such
callbacks, per-object
-<sup>[<a name="id667902" href="#ftn.id667902" class="footnote">10</a>]</sup>
+<sup>[<a name="id670905" href="#ftn.id670905" class="footnote">10</a>]</sup>
ones and user provided ones.
The per-object callbacks are most often referred to as "object method
handler" or "default (signal) handler", while user provided callbacks are
argument of the signal handler currently subject to invocation.
Specification of no detail argument for signal handlers (omission of the
detail part of the signal specification upon connection) serves as a
-wildcard and matches any detail argument passed in to emission.</p>
+wildcard and matches any detail argument passed in to emission.
+</p>
</div>
-<div class="refsect1" title="Details">
+<div class="refsect1">
<a name="gobject-Signals.details"></a><h2>Details</h2>
-<div class="refsect2" title="GSignalInvocationHint">
-<a name="GSignalInvocationHint"></a><h3>GSignalInvocationHint</h3>
-<pre class="programlisting">typedef struct {
+<div class="refsect2">
+<a name="GSignalInvocationHint"></a><h3>struct GSignalInvocationHint</h3>
+<pre class="programlisting">struct GSignalInvocationHint {
guint signal_id;
GQuark detail;
GSignalFlags run_type;
-} GSignalInvocationHint;
+};
</pre>
<p>
-The <a class="link" href="gobject-Signals.html#GSignalInvocationHint" title="GSignalInvocationHint"><span class="type">GSignalInvocationHint</span></a> structure is used to pass on additional information
-to callbacks during a signal emission.</p>
+The <a class="link" href="gobject-Signals.html#GSignalInvocationHint" title="struct GSignalInvocationHint"><span class="type">GSignalInvocationHint</span></a> structure is used to pass on additional information
+to callbacks during a signal emission.
+</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> <em class="structfield"><code><a name="GSignalInvocationHint.signal-id"></a>signal_id</code></em>;</span></p></td>
-<td> The signal id of the signal invoking the callback
-</td>
+<td>The signal id of the signal invoking the callback</td>
</tr>
<tr>
<td><p><span class="term"><a href="./../glib/glib/glib-Quarks.html#GQuark"><span class="type">GQuark</span></a> <em class="structfield"><code><a name="GSignalInvocationHint.detail"></a>detail</code></em>;</span></p></td>
-<td> The detail passed on for this emission
-</td>
+<td>The detail passed on for this emission</td>
</tr>
<tr>
<td><p><span class="term"><a class="link" href="gobject-Signals.html#GSignalFlags" title="enum GSignalFlags"><span class="type">GSignalFlags</span></a> <em class="structfield"><code><a name="GSignalInvocationHint.run-type"></a>run_type</code></em>;</span></p></td>
-<td> The stage the signal emission is currently in, this
- field will contain one of <a class="link" href="gobject-Signals.html#G-SIGNAL-RUN-FIRST:CAPS"><code class="literal">G_SIGNAL_RUN_FIRST</code></a>,
- <a class="link" href="gobject-Signals.html#G-SIGNAL-RUN-LAST:CAPS"><code class="literal">G_SIGNAL_RUN_LAST</code></a> or <a class="link" href="gobject-Signals.html#G-SIGNAL-RUN-CLEANUP:CAPS"><code class="literal">G_SIGNAL_RUN_CLEANUP</code></a>.
-</td>
+<td>The stage the signal emission is currently in, this
+field will contain one of <a class="link" href="gobject-Signals.html#G-SIGNAL-RUN-FIRST:CAPS"><code class="literal">G_SIGNAL_RUN_FIRST</code></a>,
+<a class="link" href="gobject-Signals.html#G-SIGNAL-RUN-LAST:CAPS"><code class="literal">G_SIGNAL_RUN_LAST</code></a> or <a class="link" href="gobject-Signals.html#G-SIGNAL-RUN-CLEANUP:CAPS"><code class="literal">G_SIGNAL_RUN_CLEANUP</code></a>.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
-<div class="refsect2" title="GSignalAccumulator ()">
+<div class="refsect2">
<a name="GSignalAccumulator"></a><h3>GSignalAccumulator ()</h3>
-<pre class="programlisting"><a href="./../glib/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> (*GSignalAccumulator) (<a class="link" href="gobject-Signals.html#GSignalInvocationHint" title="GSignalInvocationHint"><span class="returnvalue">GSignalInvocationHint</span></a> *ihint,
- <a class="link" href="gobject-Generic-values.html#GValue" title="GValue"><span class="returnvalue">GValue</span></a> *return_accu,
- const <a class="link" href="gobject-Generic-values.html#GValue" title="GValue"><span class="returnvalue">GValue</span></a> *handler_return,
- <a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a> data);</pre>
+<pre class="programlisting"><a href="./../glib/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> (*GSignalAccumulator) (<em class="parameter"><code><a class="link" href="gobject-Signals.html#GSignalInvocationHint" title="struct GSignalInvocationHint"><span class="type">GSignalInvocationHint</span></a> *ihint</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Generic-values.html#GValue" title="GValue"><span class="type">GValue</span></a> *return_accu</code></em>,
+ <em class="parameter"><code>const <a class="link" href="gobject-Generic-values.html#GValue" title="GValue"><span class="type">GValue</span></a> *handler_return</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> data</code></em>);</pre>
<p>
The signal accumulator is a special callback function that can be used
to collect return values of the various callbacks that are called
during a signal emission. The signal accumulator is specified at signal
creation time, if it is left <a href="./../glib/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>, no accumulation of callback return
values is performed. The return value of signal emissions is then the
-value returned by the last callback.</p>
+value returned by the last callback.
+</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>ihint</code></em> :</span></p></td>
-<td> Signal invocation hint, see <a class="link" href="gobject-Signals.html#GSignalInvocationHint" title="GSignalInvocationHint"><span class="type">GSignalInvocationHint</span></a>.
-</td>
+<td>Signal invocation hint, see <a class="link" href="gobject-Signals.html#GSignalInvocationHint" title="struct GSignalInvocationHint"><span class="type">GSignalInvocationHint</span></a>.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>return_accu</code></em> :</span></p></td>
-<td> Accumulator to collect callback return values in, this
- is the return value of the current signal emission.
-</td>
+<td>Accumulator to collect callback return values in, this
+is the return value of the current signal emission.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>handler_return</code></em> :</span></p></td>
-<td> A <a class="link" href="gobject-Generic-values.html#GValue" title="GValue"><span class="type">GValue</span></a> holding the return value of the signal handler.
-</td>
+<td>A <a class="link" href="gobject-Generic-values.html#GValue" title="GValue"><span class="type">GValue</span></a> holding the return value of the signal handler.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>data</code></em> :</span></p></td>
-<td> Callback data that was specified when creating the signal.
-</td>
+<td>Callback data that was specified when creating the signal.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
-<td> The accumulator function returns whether the signal emission
- should be aborted. Returning <a href="./../glib/glib/glib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a> means to abort the
- current emission and <a href="./../glib/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> is returned for continuation.
-</td>
+<td>The accumulator function returns whether the signal emission
+should be aborted. Returning <a href="./../glib/glib/glib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a> means to abort the
+current emission and <a href="./../glib/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> is returned for continuation.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
-<div class="refsect2" title="GSignalCMarshaller">
+<div class="refsect2">
<a name="GSignalCMarshaller"></a><h3>GSignalCMarshaller</h3>
<pre class="programlisting">typedef GClosureMarshal GSignalCMarshaller;
</pre>
<p>
This is the signature of marshaller functions, required to marshall
arrays of parameter values to signal emissions into C language callback
-invocations. It is merely an alias to <a class="link" href="gobject-Closures.html#GClosureMarshal" title="GClosureMarshal ()"><span class="type">GClosureMarshal</span></a> since the <a class="link" href="gobject-Closures.html#GClosure" title="GClosure"><span class="type">GClosure</span></a>
+invocations. It is merely an alias to <a class="link" href="gobject-Closures.html#GClosureMarshal" title="GClosureMarshal ()"><span class="type">GClosureMarshal</span></a> since the <a class="link" href="gobject-Closures.html#GClosure" title="struct GClosure"><span class="type">GClosure</span></a>
mechanism takes over responsibility of actual function invocation for the
-signal system.</p>
+signal system.
+</p>
</div>
<hr>
-<div class="refsect2" title="GSignalEmissionHook ()">
+<div class="refsect2">
<a name="GSignalEmissionHook"></a><h3>GSignalEmissionHook ()</h3>
-<pre class="programlisting"><a href="./../glib/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> (*GSignalEmissionHook) (<a class="link" href="gobject-Signals.html#GSignalInvocationHint" title="GSignalInvocationHint"><span class="returnvalue">GSignalInvocationHint</span></a> *ihint,
- <a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> n_param_values,
- const <a class="link" href="gobject-Generic-values.html#GValue" title="GValue"><span class="returnvalue">GValue</span></a> *param_values,
- <a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a> data);</pre>
+<pre class="programlisting"><a href="./../glib/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> (*GSignalEmissionHook) (<em class="parameter"><code><a class="link" href="gobject-Signals.html#GSignalInvocationHint" title="struct GSignalInvocationHint"><span class="type">GSignalInvocationHint</span></a> *ihint</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> n_param_values</code></em>,
+ <em class="parameter"><code>const <a class="link" href="gobject-Generic-values.html#GValue" title="GValue"><span class="type">GValue</span></a> *param_values</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> data</code></em>);</pre>
<p>
A simple function pointer to get invoked when the signal is emitted. This
allows you to tie a hook to the signal type, so that it will trap all
emissions of that signal, from any object.
</p>
<p>
-You may not attach these to signals created with the <a class="link" href="gobject-Signals.html#G-SIGNAL-NO-HOOKS:CAPS"><span class="type">G_SIGNAL_NO_HOOKS</span></a> flag.</p>
+You may not attach these to signals created with the <a class="link" href="gobject-Signals.html#G-SIGNAL-NO-HOOKS:CAPS"><span class="type">G_SIGNAL_NO_HOOKS</span></a> flag.
+</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>ihint</code></em> :</span></p></td>
-<td> Signal invocation hint, see <a class="link" href="gobject-Signals.html#GSignalInvocationHint" title="GSignalInvocationHint"><span class="type">GSignalInvocationHint</span></a>.
-</td>
+<td>Signal invocation hint, see <a class="link" href="gobject-Signals.html#GSignalInvocationHint" title="struct GSignalInvocationHint"><span class="type">GSignalInvocationHint</span></a>.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>n_param_values</code></em> :</span></p></td>
-<td> the number of parameters to the function, including
- the instance on which the signal was emitted.
-</td>
+<td>the number of parameters to the function, including
+the instance on which the signal was emitted.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>param_values</code></em> :</span></p></td>
-<td> the instance on which the signal was emitted, followed by the
- parameters of the emission.
+<td>the instance on which
+the signal was emitted, followed by the parameters of the emission. <span class="annotation">[<acronym title="Parameter points to an array of items."><span class="acronym">array</span></acronym> length=n_param_values]</span>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>data</code></em> :</span></p></td>
-<td> user data associated with the hook.
-</td>
+<td>user data associated with the hook.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
-<td> whether it wants to stay connected. If it returns <a href="./../glib/glib/glib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a>, the signal
- hook is disconnected (and destroyed).
-</td>
+<td>whether it wants to stay connected. If it returns <a href="./../glib/glib/glib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a>, the signal
+hook is disconnected (and destroyed).</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
-<div class="refsect2" title="enum GSignalFlags">
+<div class="refsect2">
<a name="GSignalFlags"></a><h3>enum GSignalFlags</h3>
-<pre class="programlisting">typedef enum
-{
+<pre class="programlisting">typedef enum {
G_SIGNAL_RUN_FIRST = 1 << 0,
G_SIGNAL_RUN_LAST = 1 << 1,
G_SIGNAL_RUN_CLEANUP = 1 << 2,
G_SIGNAL_NO_RECURSE = 1 << 3,
G_SIGNAL_DETAILED = 1 << 4,
G_SIGNAL_ACTION = 1 << 5,
- G_SIGNAL_NO_HOOKS = 1 << 6
+ G_SIGNAL_NO_HOOKS = 1 << 6,
+ G_SIGNAL_MUST_COLLECT = 1 << 7,
+ G_SIGNAL_DEPRECATED = 1 << 8
} GSignalFlags;
</pre>
<p>
The signal flags are used to specify a signal's behaviour, the overall
signal description outlines how especially the RUN flags control the
-stages of a signal emission.</p>
+stages of a signal emission.
+</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><a name="G-SIGNAL-RUN-FIRST:CAPS"></a><span class="term"><code class="literal">G_SIGNAL_RUN_FIRST</code></span></p></td>
-<td> Invoke the object method handler in the first emission stage.
+<td>Invoke the object method handler in the first emission stage.
</td>
</tr>
<tr>
<td><p><a name="G-SIGNAL-RUN-LAST:CAPS"></a><span class="term"><code class="literal">G_SIGNAL_RUN_LAST</code></span></p></td>
-<td> Invoke the object method handler in the third emission stage.
+<td>Invoke the object method handler in the third emission stage.
</td>
</tr>
<tr>
<td><p><a name="G-SIGNAL-RUN-CLEANUP:CAPS"></a><span class="term"><code class="literal">G_SIGNAL_RUN_CLEANUP</code></span></p></td>
-<td> Invoke the object method handler in the last emission stage.
+<td>Invoke the object method handler in the last emission stage.
</td>
</tr>
<tr>
<td><p><a name="G-SIGNAL-NO-RECURSE:CAPS"></a><span class="term"><code class="literal">G_SIGNAL_NO_RECURSE</code></span></p></td>
-<td> Signals being emitted for an object while currently being in
+<td>Signals being emitted for an object while currently being in
emission for this very object will not be emitted recursively,
but instead cause the first emission to be restarted.
</td>
</tr>
<tr>
<td><p><a name="G-SIGNAL-DETAILED:CAPS"></a><span class="term"><code class="literal">G_SIGNAL_DETAILED</code></span></p></td>
-<td> This signal supports "::detail" appendices to the signal name
+<td>This signal supports "::detail" appendices to the signal name
upon handler connections and emissions.
</td>
</tr>
<tr>
<td><p><a name="G-SIGNAL-ACTION:CAPS"></a><span class="term"><code class="literal">G_SIGNAL_ACTION</code></span></p></td>
-<td> Action signals are signals that may freely be emitted on alive
+<td>Action signals are signals that may freely be emitted on alive
objects from user code via <a class="link" href="gobject-Signals.html#g-signal-emit" title="g_signal_emit ()"><code class="function">g_signal_emit()</code></a> and friends, without
the need of being embedded into extra code that performs pre or
post emission adjustments on the object. They can also be thought
</tr>
<tr>
<td><p><a name="G-SIGNAL-NO-HOOKS:CAPS"></a><span class="term"><code class="literal">G_SIGNAL_NO_HOOKS</code></span></p></td>
-<td> No emissions hooks are supported for this signal.
+<td>No emissions hooks are supported for this signal.
+</td>
+</tr>
+<tr>
+<td><p><a name="G-SIGNAL-MUST-COLLECT:CAPS"></a><span class="term"><code class="literal">G_SIGNAL_MUST_COLLECT</code></span></p></td>
+<td>Varargs signal emission will always collect the
+ arguments, even if there are no signal handlers connected. Since 2.30.
+</td>
+</tr>
+<tr>
+<td><p><a name="G-SIGNAL-DEPRECATED:CAPS"></a><span class="term"><code class="literal">G_SIGNAL_DEPRECATED</code></span></p></td>
+<td>The signal is deprecated and will be removed
+ in a future version. A warning will be generated if it is connected while
+ running with G_ENABLE_DIAGNOSTIC=1. Since 2.32.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
-<div class="refsect2" title="enum GSignalMatchType">
+<div class="refsect2">
<a name="GSignalMatchType"></a><h3>enum GSignalMatchType</h3>
-<pre class="programlisting">typedef enum
-{
+<pre class="programlisting">typedef enum {
G_SIGNAL_MATCH_ID = 1 << 0,
G_SIGNAL_MATCH_DETAIL = 1 << 1,
G_SIGNAL_MATCH_CLOSURE = 1 << 2,
<p>
The match types specify what <a class="link" href="gobject-Signals.html#g-signal-handlers-block-matched" title="g_signal_handlers_block_matched ()"><code class="function">g_signal_handlers_block_matched()</code></a>,
<a class="link" href="gobject-Signals.html#g-signal-handlers-unblock-matched" title="g_signal_handlers_unblock_matched ()"><code class="function">g_signal_handlers_unblock_matched()</code></a> and <a class="link" href="gobject-Signals.html#g-signal-handlers-disconnect-matched" title="g_signal_handlers_disconnect_matched ()"><code class="function">g_signal_handlers_disconnect_matched()</code></a>
-match signals by.</p>
+match signals by.
+</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><a name="G-SIGNAL-MATCH-ID:CAPS"></a><span class="term"><code class="literal">G_SIGNAL_MATCH_ID</code></span></p></td>
-<td> The signal id must be equal.
+<td>The signal id must be equal.
</td>
</tr>
<tr>
<td><p><a name="G-SIGNAL-MATCH-DETAIL:CAPS"></a><span class="term"><code class="literal">G_SIGNAL_MATCH_DETAIL</code></span></p></td>
-<td> The signal detail be equal.
+<td>The signal detail be equal.
</td>
</tr>
<tr>
<td><p><a name="G-SIGNAL-MATCH-CLOSURE:CAPS"></a><span class="term"><code class="literal">G_SIGNAL_MATCH_CLOSURE</code></span></p></td>
-<td> The closure must be the same.
+<td>The closure must be the same.
</td>
</tr>
<tr>
<td><p><a name="G-SIGNAL-MATCH-FUNC:CAPS"></a><span class="term"><code class="literal">G_SIGNAL_MATCH_FUNC</code></span></p></td>
-<td> The C closure callback must be the same.
+<td>The C closure callback must be the same.
</td>
</tr>
<tr>
<td><p><a name="G-SIGNAL-MATCH-DATA:CAPS"></a><span class="term"><code class="literal">G_SIGNAL_MATCH_DATA</code></span></p></td>
-<td> The closure data must be the same.
+<td>The closure data must be the same.
</td>
</tr>
<tr>
<td><p><a name="G-SIGNAL-MATCH-UNBLOCKED:CAPS"></a><span class="term"><code class="literal">G_SIGNAL_MATCH_UNBLOCKED</code></span></p></td>
-<td> Only unblocked signals may matched.
+<td>Only unblocked signals may matched.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
-<div class="refsect2" title="GSignalQuery">
-<a name="GSignalQuery"></a><h3>GSignalQuery</h3>
-<pre class="programlisting">typedef struct {
+<div class="refsect2">
+<a name="GSignalQuery"></a><h3>struct GSignalQuery</h3>
+<pre class="programlisting">struct GSignalQuery {
guint signal_id;
const gchar *signal_name;
GType itype;
GType return_type; /* mangled with G_SIGNAL_TYPE_STATIC_SCOPE flag */
guint n_params;
const GType *param_types; /* mangled with G_SIGNAL_TYPE_STATIC_SCOPE flag */
-} GSignalQuery;
+};
</pre>
<p>
A structure holding in-depth information for a specific signal. It is
-filled in by the <a class="link" href="gobject-Signals.html#g-signal-query" title="g_signal_query ()"><code class="function">g_signal_query()</code></a> function.</p>
+filled in by the <a class="link" href="gobject-Signals.html#g-signal-query" title="g_signal_query ()"><code class="function">g_signal_query()</code></a> function.
+</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> <em class="structfield"><code><a name="GSignalQuery.signal-id"></a>signal_id</code></em>;</span></p></td>
-<td> The signal id of the signal being queried, or 0 if the
- signal to be queried was unknown.
-</td>
+<td>The signal id of the signal being queried, or 0 if the
+signal to be queried was unknown.</td>
</tr>
<tr>
<td><p><span class="term">const <a href="./../glib/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *<em class="structfield"><code><a name="GSignalQuery.signal-name"></a>signal_name</code></em>;</span></p></td>
-<td> The signal name.
-</td>
+<td>The signal name.</td>
</tr>
<tr>
<td><p><span class="term"><a class="link" href="gobject-Type-Information.html#GType" title="GType"><span class="type">GType</span></a> <em class="structfield"><code><a name="GSignalQuery.itype"></a>itype</code></em>;</span></p></td>
-<td> The interface/instance type that this signal can be emitted for.
-</td>
+<td>The interface/instance type that this signal can be emitted for.</td>
</tr>
<tr>
<td><p><span class="term"><a class="link" href="gobject-Signals.html#GSignalFlags" title="enum GSignalFlags"><span class="type">GSignalFlags</span></a> <em class="structfield"><code><a name="GSignalQuery.signal-flags"></a>signal_flags</code></em>;</span></p></td>
-<td> The signal flags as passed in to <a class="link" href="gobject-Signals.html#g-signal-new" title="g_signal_new ()"><code class="function">g_signal_new()</code></a>.
-</td>
+<td>The signal flags as passed in to <a class="link" href="gobject-Signals.html#g-signal-new" title="g_signal_new ()"><code class="function">g_signal_new()</code></a>.</td>
</tr>
<tr>
<td><p><span class="term"><a class="link" href="gobject-Type-Information.html#GType" title="GType"><span class="type">GType</span></a> <em class="structfield"><code><a name="GSignalQuery.return-type"></a>return_type</code></em>;</span></p></td>
-<td> The return type for user callbacks.
-</td>
+<td>The return type for user callbacks.</td>
</tr>
<tr>
<td><p><span class="term"><a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> <em class="structfield"><code><a name="GSignalQuery.n-params"></a>n_params</code></em>;</span></p></td>
-<td> The number of parameters that user callbacks take.
-</td>
+<td>The number of parameters that user callbacks take.</td>
</tr>
<tr>
<td><p><span class="term">const <a class="link" href="gobject-Type-Information.html#GType" title="GType"><span class="type">GType</span></a> *<em class="structfield"><code><a name="GSignalQuery.param-types"></a>param_types</code></em>;</span></p></td>
-<td> The individual parameter types for user callbacks, note that the
- effective callback signature is:
-
<pre class="programlisting">
-
@return_type callback (<a href="./../glib/glib/glib-Basic-Types.html#gpointer">gpointer</a> data1,
- [param_types param_names,]
- <a href="./../glib/glib/glib-Basic-Types.html#gpointer">gpointer</a> data2);
- </pre>
+<td>The individual parameter types for user callbacks, note that the
+effective callback signature is:
+<pre class="programlisting">
+@return_type callback (<a href="./../glib/glib/glib-Basic-Types.html#gpointer">gpointer</a> data1,
+[param_types param_names,]
+gpointer data2);
+</pre>
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
-<div class="refsect2" title="G_SIGNAL_TYPE_STATIC_SCOPE">
+<div class="refsect2">
<a name="G-SIGNAL-TYPE-STATIC-SCOPE:CAPS"></a><h3>G_SIGNAL_TYPE_STATIC_SCOPE</h3>
<pre class="programlisting">#define G_SIGNAL_TYPE_STATIC_SCOPE (G_TYPE_FLAG_RESERVED_ID_BIT)
</pre>
<code class="literal">| G_SIGNAL_TYPE_STATIC_SCOPE</code> to the corresponding argument
of <a class="link" href="gobject-Signals.html#g-signal-new" title="g_signal_new ()"><code class="function">g_signal_new()</code></a>.
</p>
-<div class="informalexample"><pre class="programlisting">
-g_signal_new ("size_request",
- G_TYPE_FROM_CLASS (gobject_class),
- G_SIGNAL_RUN_FIRST,
- G_STRUCT_OFFSET (GtkWidgetClass, size_request),
- NULL, NULL,
- _gtk_marshal_VOID__BOXED,
- G_TYPE_NONE, 1,
- GTK_TYPE_REQUISITION | G_SIGNAL_TYPE_STATIC_SCOPE);
-</pre></div>
+<div class="informalexample">
+ <table class="listing_frame" border="0" cellpadding="0" cellspacing="0">
+ <tbody>
+ <tr>
+ <td class="listing_lines" align="right"><pre>1
+2
+3
+4
+5
+6
+7
+8</pre></td>
+ <td class="listing_code"><pre class="programlisting"><span class="function"><a href="gobject-Signals.html#g-signal-new">g_signal_new</a></span><span class="normal"> </span><span class="symbol">(</span><span class="string">"size_request"</span><span class="symbol">,</span>
+<span class="normal"> </span><span class="function"><a href="gobject-Type-Information.html#G-TYPE-FROM-CLASS:CAPS">G_TYPE_FROM_CLASS</a></span><span class="normal"> </span><span class="symbol">(</span><span class="normal">gobject_class</span><span class="symbol">),</span>
+<span class="normal"> <a href="gobject-Signals.html#G-SIGNAL-RUN-FIRST:CAPS">G_SIGNAL_RUN_FIRST</a></span><span class="symbol">,</span>
+<span class="normal"> </span><span class="function"><a href="./../glib/glib/glib-Standard-Macros.html#G-STRUCT-OFFSET:CAPS">G_STRUCT_OFFSET</a></span><span class="normal"> </span><span class="symbol">(</span><span class="normal"><a href="http://developer.gnome.org/devel/gtk/GtkWidget.html#GtkWidgetClass">GtkWidgetClass</a></span><span class="symbol">,</span><span class="normal"> size_request</span><span class="symbol">),</span>
+<span class="normal"> <a href="./../glib/glib/glib-Standard-Macros.html#NULL:CAPS">NULL</a></span><span class="symbol">,</span><span class="normal"> <a href="./../glib/glib/glib-Standard-Macros.html#NULL:CAPS">NULL</a></span><span class="symbol">,</span>
+<span class="normal"> _gtk_marshal_VOID__BOXED</span><span class="symbol">,</span>
+<span class="normal"> <a href="gobject-Type-Information.html#G-TYPE-NONE:CAPS">G_TYPE_NONE</a></span><span class="symbol">,</span><span class="normal"> </span><span class="number">1</span><span class="symbol">,</span>
+<span class="normal"> GTK_TYPE_REQUISITION </span><span class="symbol">|</span><span class="normal"> <a href="gobject-Signals.html#G-SIGNAL-TYPE-STATIC-SCOPE:CAPS">G_SIGNAL_TYPE_STATIC_SCOPE</a></span><span class="symbol">);</span></pre></td>
+ </tr>
+ </tbody>
+ </table>
+</div>
+
+<p>
+</p>
</div>
<hr>
-<div class="refsect2" title="G_SIGNAL_MATCH_MASK">
+<div class="refsect2">
<a name="G-SIGNAL-MATCH-MASK:CAPS"></a><h3>G_SIGNAL_MATCH_MASK</h3>
<pre class="programlisting">#define G_SIGNAL_MATCH_MASK 0x3f
</pre>
<p>
-A mask for all <a class="link" href="gobject-Signals.html#GSignalMatchType" title="enum GSignalMatchType"><span class="type">GSignalMatchType</span></a> bits.</p>
+A mask for all <a class="link" href="gobject-Signals.html#GSignalMatchType" title="enum GSignalMatchType"><span class="type">GSignalMatchType</span></a> bits.
+</p>
</div>
<hr>
-<div class="refsect2" title="G_SIGNAL_FLAGS_MASK">
+<div class="refsect2">
<a name="G-SIGNAL-FLAGS-MASK:CAPS"></a><h3>G_SIGNAL_FLAGS_MASK</h3>
-<pre class="programlisting">#define G_SIGNAL_FLAGS_MASK 0x7f
+<pre class="programlisting">#define G_SIGNAL_FLAGS_MASK 0x1ff
</pre>
<p>
-A mask for all <a class="link" href="gobject-Signals.html#GSignalFlags" title="enum GSignalFlags"><span class="type">GSignalFlags</span></a> bits.</p>
+A mask for all <a class="link" href="gobject-Signals.html#GSignalFlags" title="enum GSignalFlags"><span class="type">GSignalFlags</span></a> bits.
+</p>
</div>
<hr>
-<div class="refsect2" title="g_signal_new ()">
+<div class="refsect2">
<a name="g-signal-new"></a><h3>g_signal_new ()</h3>
-<pre class="programlisting"><a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> g_signal_new (const <a href="./../glib/glib/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *signal_name,
- <a class="link" href="gobject-Type-Information.html#GType" title="GType"><span class="returnvalue">GType</span></a> itype,
- <a class="link" href="gobject-Signals.html#GSignalFlags" title="enum GSignalFlags"><span class="returnvalue">GSignalFlags</span></a> signal_flags,
- <a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> class_offset,
- <a class="link" href="gobject-Signals.html#GSignalAccumulator" title="GSignalAccumulator ()"><span class="returnvalue">GSignalAccumulator</span></a> accumulator,
- <a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a> accu_data,
- <a class="link" href="gobject-Signals.html#GSignalCMarshaller" title="GSignalCMarshaller"><span class="returnvalue">GSignalCMarshaller</span></a> c_marshaller,
- <a class="link" href="gobject-Type-Information.html#GType" title="GType"><span class="returnvalue">GType</span></a> return_type,
- <a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> n_params,
- ...);</pre>
+<pre class="programlisting"><a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> g_signal_new (<em class="parameter"><code>const <a href="./../glib/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *signal_name</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Type-Information.html#GType" title="GType"><span class="type">GType</span></a> itype</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Signals.html#GSignalFlags" title="enum GSignalFlags"><span class="type">GSignalFlags</span></a> signal_flags</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> class_offset</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Signals.html#GSignalAccumulator" title="GSignalAccumulator ()"><span class="type">GSignalAccumulator</span></a> accumulator</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> accu_data</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Signals.html#GSignalCMarshaller" title="GSignalCMarshaller"><span class="type">GSignalCMarshaller</span></a> c_marshaller</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Type-Information.html#GType" title="GType"><span class="type">GType</span></a> return_type</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> n_params</code></em>,
+ <em class="parameter"><code>...</code></em>);</pre>
<p>
Creates a new signal. (This is usually done in the class initializer.)
</p>
If 0 is used for <em class="parameter"><code>class_offset</code></em> subclasses cannot override the class handler
in their <code class="code">class_init</code> method by doing
<code class="code">super_class->signal_handler = my_signal_handler</code>. Instead they
-will have to use <a class="link" href="gobject-Signals.html#g-signal-override-class-handler" title="g_signal_override_class_handler ()"><code class="function">g_signal_override_class_handler()</code></a>.</p>
+will have to use <a class="link" href="gobject-Signals.html#g-signal-override-class-handler" title="g_signal_override_class_handler ()"><code class="function">g_signal_override_class_handler()</code></a>.
+</p>
+<p>
+If c_marshaller is <a href="./../glib/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>, <a class="link" href="gobject-Closures.html#g-cclosure-marshal-generic" title="g_cclosure_marshal_generic ()"><code class="function">g_cclosure_marshal_generic()</code></a> will be used as
+the marshaller for this signal.
+</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>signal_name</code></em> :</span></p></td>
-<td> the name for the signal
-</td>
+<td>the name for the signal</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>itype</code></em> :</span></p></td>
-<td> the type this signal pertains to. It will also pertain to
- types which are derived from this type.
-</td>
+<td>the type this signal pertains to. It will also pertain to
+types which are derived from this type.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>signal_flags</code></em> :</span></p></td>
-<td> a combination of <a class="link" href="gobject-Signals.html#GSignalFlags" title="enum GSignalFlags"><span class="type">GSignalFlags</span></a> specifying detail of when
- the default handler is to be invoked. You should at least specify
- <a class="link" href="gobject-Signals.html#G-SIGNAL-RUN-FIRST:CAPS"><code class="literal">G_SIGNAL_RUN_FIRST</code></a> or <a class="link" href="gobject-Signals.html#G-SIGNAL-RUN-LAST:CAPS"><code class="literal">G_SIGNAL_RUN_LAST</code></a>.
-</td>
+<td>a combination of <a class="link" href="gobject-Signals.html#GSignalFlags" title="enum GSignalFlags"><span class="type">GSignalFlags</span></a> specifying detail of when
+the default handler is to be invoked. You should at least specify
+<a class="link" href="gobject-Signals.html#G-SIGNAL-RUN-FIRST:CAPS"><code class="literal">G_SIGNAL_RUN_FIRST</code></a> or <a class="link" href="gobject-Signals.html#G-SIGNAL-RUN-LAST:CAPS"><code class="literal">G_SIGNAL_RUN_LAST</code></a>.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>class_offset</code></em> :</span></p></td>
-<td> The offset of the function pointer in the class structure
- for this type. Used to invoke a class method generically. Pass 0 to
- not associate a class method slot with this signal.
-</td>
+<td>The offset of the function pointer in the class structure
+for this type. Used to invoke a class method generically. Pass 0 to
+not associate a class method slot with this signal.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>accumulator</code></em> :</span></p></td>
-<td> the accumulator for this signal; may be <a href="./../glib/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>.
-</td>
+<td>the accumulator for this signal; may be <a href="./../glib/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>accu_data</code></em> :</span></p></td>
-<td> user data for the <em class="parameter"><code>accumulator</code></em>.
-</td>
+<td>user data for the <em class="parameter"><code>accumulator</code></em>.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>c_marshaller</code></em> :</span></p></td>
-<td> the function to translate arrays of parameter values to
- signal emissions into C language callback invocations.
+<td>the function to translate arrays of parameter
+values to signal emissions into C language callback invocations or <a href="./../glib/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>. <span class="annotation">[<acronym title="NULL is ok, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>return_type</code></em> :</span></p></td>
-<td> the type of return value, or <a class="link" href="gobject-Type-Information.html#G-TYPE-NONE:CAPS" title="G_TYPE_NONE"><span class="type">G_TYPE_NONE</span></a> for a signal
- without a return value.
-</td>
+<td>the type of return value, or <a class="link" href="gobject-Type-Information.html#G-TYPE-NONE:CAPS" title="G_TYPE_NONE"><span class="type">G_TYPE_NONE</span></a> for a signal
+without a return value.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>n_params</code></em> :</span></p></td>
-<td> the number of parameter types to follow.
-</td>
+<td>the number of parameter types to follow.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>...</code></em> :</span></p></td>
-<td> a list of types, one for each parameter.
-</td>
+<td>a list of types, one for each parameter.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
-<td> the signal id
-</td>
+<td>the signal id</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
-<div class="refsect2" title="g_signal_newv ()">
+<div class="refsect2">
<a name="g-signal-newv"></a><h3>g_signal_newv ()</h3>
-<pre class="programlisting"><a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> g_signal_newv (const <a href="./../glib/glib/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *signal_name,
- <a class="link" href="gobject-Type-Information.html#GType" title="GType"><span class="returnvalue">GType</span></a> itype,
- <a class="link" href="gobject-Signals.html#GSignalFlags" title="enum GSignalFlags"><span class="returnvalue">GSignalFlags</span></a> signal_flags,
- <a class="link" href="gobject-Closures.html#GClosure" title="GClosure"><span class="returnvalue">GClosure</span></a> *class_closure,
- <a class="link" href="gobject-Signals.html#GSignalAccumulator" title="GSignalAccumulator ()"><span class="returnvalue">GSignalAccumulator</span></a> accumulator,
- <a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a> accu_data,
- <a class="link" href="gobject-Signals.html#GSignalCMarshaller" title="GSignalCMarshaller"><span class="returnvalue">GSignalCMarshaller</span></a> c_marshaller,
- <a class="link" href="gobject-Type-Information.html#GType" title="GType"><span class="returnvalue">GType</span></a> return_type,
- <a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> n_params,
- <a class="link" href="gobject-Type-Information.html#GType" title="GType"><span class="returnvalue">GType</span></a> *param_types);</pre>
+<pre class="programlisting"><a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> g_signal_newv (<em class="parameter"><code>const <a href="./../glib/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *signal_name</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Type-Information.html#GType" title="GType"><span class="type">GType</span></a> itype</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Signals.html#GSignalFlags" title="enum GSignalFlags"><span class="type">GSignalFlags</span></a> signal_flags</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Closures.html#GClosure" title="struct GClosure"><span class="type">GClosure</span></a> *class_closure</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Signals.html#GSignalAccumulator" title="GSignalAccumulator ()"><span class="type">GSignalAccumulator</span></a> accumulator</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> accu_data</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Signals.html#GSignalCMarshaller" title="GSignalCMarshaller"><span class="type">GSignalCMarshaller</span></a> c_marshaller</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Type-Information.html#GType" title="GType"><span class="type">GType</span></a> return_type</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> n_params</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Type-Information.html#GType" title="GType"><span class="type">GType</span></a> *param_types</code></em>);</pre>
<p>
Creates a new signal. (This is usually done in the class initializer.)
</p>
<p>
-See <a class="link" href="gobject-Signals.html#g-signal-new" title="g_signal_new ()"><code class="function">g_signal_new()</code></a> for details on allowed signal names.</p>
+See <a class="link" href="gobject-Signals.html#g-signal-new" title="g_signal_new ()"><code class="function">g_signal_new()</code></a> for details on allowed signal names.
+</p>
+<p>
+If c_marshaller is <a href="./../glib/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> <em class="parameter"><code>g_cclosure_marshal_generic</code></em> will be used as
+the marshaller for this signal.
+</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>signal_name</code></em> :</span></p></td>
-<td> the name for the signal
-</td>
+<td>the name for the signal</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>itype</code></em> :</span></p></td>
-<td> the type this signal pertains to. It will also pertain to
- types which are derived from this type
-</td>
+<td>the type this signal pertains to. It will also pertain to
+types which are derived from this type</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>signal_flags</code></em> :</span></p></td>
-<td>
a combination of <a class="link" href="gobject-Signals.html#GSignalFlags" title="enum GSignalFlags"><span class="type">GSignalFlags</span></a> specifying detail of when
- the default handler is to be invoked. You should at least specify
-
<a class="link" href="gobject-Signals.html#G-SIGNAL-RUN-FIRST:CAPS"><code class="literal">G_SIGNAL_RUN_FIRST</code></a> or <a class="link" href="gobject-Signals.html#G-SIGNAL-RUN-LAST:CAPS"><code class="literal">G_SIGNAL_RUN_LAST</code></a>
+<td>a combination of <a class="link" href="gobject-Signals.html#GSignalFlags" title="enum GSignalFlags"><span class="type">GSignalFlags</span></a> specifying detail of when
+the default handler is to be invoked. You should at least specify
+<a class="link" href="gobject-Signals.html#G-SIGNAL-RUN-FIRST:CAPS"><code class="literal">G_SIGNAL_RUN_FIRST</code></a> or <a class="link" href="gobject-Signals.html#G-SIGNAL-RUN-LAST:CAPS"><code class="literal">G_SIGNAL_RUN_LAST</code></a>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>class_closure</code></em> :</span></p></td>
-<td> The closure to invoke on signal emission; may be <a href="./../glib/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>
+<td>The closure to invoke on signal emission;
+may be <a href="./../glib/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>. <span class="annotation">[<acronym title="NULL is ok, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>accumulator</code></em> :</span></p></td>
-<td> the accumulator for this signal; may be <a href="./../glib/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>
+<td>the accumulator for this signal; may be <a href="./../glib/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>. <span class="annotation">[<acronym title="NULL is ok, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>accu_data</code></em> :</span></p></td>
-<td> user data for the <em class="parameter"><code>accumulator</code></em>
+<td>user data for the <em class="parameter"><code>accumulator</code></em>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>c_marshaller</code></em> :</span></p></td>
-<td> the function to translate arrays of parameter values to
- signal emissions into C language callback invocations
+<td>the function to translate arrays of
+parameter values to signal emissions into C language callback
+invocations or <a href="./../glib/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>. <span class="annotation">[<acronym title="NULL is ok, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>return_type</code></em> :</span></p></td>
-<td> the type of return value, or <a class="link" href="gobject-Type-Information.html#G-TYPE-NONE:CAPS" title="G_TYPE_NONE"><span class="type">G_TYPE_NONE</span></a> for a signal
- without a return value
-</td>
+<td>the type of return value, or <a class="link" href="gobject-Type-Information.html#G-TYPE-NONE:CAPS" title="G_TYPE_NONE"><span class="type">G_TYPE_NONE</span></a> for a signal
+without a return value</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>n_params</code></em> :</span></p></td>
-<td> the length of <em class="parameter"><code>param_types</code></em>
+<td>the length of <em class="parameter"><code>param_types</code></em>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>param_types</code></em> :</span></p></td>
-<td> an array of types, one for each parameter
+<td>an array of types, one for
+each parameter. <span class="annotation">[<acronym title="Parameter points to an array of items."><span class="acronym">array</span></acronym> length=n_params]</span>
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
-<td> the signal id
-</td>
+<td>the signal id</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
-<div class="refsect2" title="g_signal_new_valist ()">
+<div class="refsect2">
<a name="g-signal-new-valist"></a><h3>g_signal_new_valist ()</h3>
-<pre class="programlisting"><a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> g_signal_new_valist (const <a href="./../glib/glib/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *signal_name,
- <a class="link" href="gobject-Type-Information.html#GType" title="GType"><span class="returnvalue">GType</span></a> itype,
- <a class="link" href="gobject-Signals.html#GSignalFlags" title="enum GSignalFlags"><span class="returnvalue">GSignalFlags</span></a> signal_flags,
- <a class="link" href="gobject-Closures.html#GClosure" title="GClosure"><span class="returnvalue">GClosure</span></a> *class_closure,
- <a class="link" href="gobject-Signals.html#GSignalAccumulator" title="GSignalAccumulator ()"><span class="returnvalue">GSignalAccumulator</span></a> accumulator,
- <a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a> accu_data,
- <a class="link" href="gobject-Signals.html#GSignalCMarshaller" title="GSignalCMarshaller"><span class="returnvalue">GSignalCMarshaller</span></a> c_marshaller,
- <a class="link" href="gobject-Type-Information.html#GType" title="GType"><span class="returnvalue">GType</span></a> return_type,
- <a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> n_params,
- <span class="returnvalue">va_list</span> args);</pre>
+<pre class="programlisting"><a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> g_signal_new_valist (<em class="parameter"><code>const <a href="./../glib/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *signal_name</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Type-Information.html#GType" title="GType"><span class="type">GType</span></a> itype</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Signals.html#GSignalFlags" title="enum GSignalFlags"><span class="type">GSignalFlags</span></a> signal_flags</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Closures.html#GClosure" title="struct GClosure"><span class="type">GClosure</span></a> *class_closure</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Signals.html#GSignalAccumulator" title="GSignalAccumulator ()"><span class="type">GSignalAccumulator</span></a> accumulator</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> accu_data</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Signals.html#GSignalCMarshaller" title="GSignalCMarshaller"><span class="type">GSignalCMarshaller</span></a> c_marshaller</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Type-Information.html#GType" title="GType"><span class="type">GType</span></a> return_type</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> n_params</code></em>,
+ <em class="parameter"><code><span class="type">va_list</span> args</code></em>);</pre>
<p>
Creates a new signal. (This is usually done in the class initializer.)
</p>
<p>
-See <a class="link" href="gobject-Signals.html#g-signal-new" title="g_signal_new ()"><code class="function">g_signal_new()</code></a> for details on allowed signal names.</p>
+See <a class="link" href="gobject-Signals.html#g-signal-new" title="g_signal_new ()"><code class="function">g_signal_new()</code></a> for details on allowed signal names.
+</p>
+<p>
+If c_marshaller is <a href="./../glib/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>, <a class="link" href="gobject-Closures.html#g-cclosure-marshal-generic" title="g_cclosure_marshal_generic ()"><code class="function">g_cclosure_marshal_generic()</code></a> will be used as
+the marshaller for this signal.
+</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>signal_name</code></em> :</span></p></td>
-<td> the name for the signal
-</td>
+<td>the name for the signal</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>itype</code></em> :</span></p></td>
-<td> the type this signal pertains to. It will also pertain to
- types which are derived from this type.
-</td>
+<td>the type this signal pertains to. It will also pertain to
+types which are derived from this type.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>signal_flags</code></em> :</span></p></td>
-<td> a combination of <a class="link" href="gobject-Signals.html#GSignalFlags" title="enum GSignalFlags"><span class="type">GSignalFlags</span></a> specifying detail of when
- the default handler is to be invoked. You should at least specify
- <a class="link" href="gobject-Signals.html#G-SIGNAL-RUN-FIRST:CAPS"><code class="literal">G_SIGNAL_RUN_FIRST</code></a> or <a class="link" href="gobject-Signals.html#G-SIGNAL-RUN-LAST:CAPS"><code class="literal">G_SIGNAL_RUN_LAST</code></a>.
-</td>
+<td>a combination of <a class="link" href="gobject-Signals.html#GSignalFlags" title="enum GSignalFlags"><span class="type">GSignalFlags</span></a> specifying detail of when
+the default handler is to be invoked. You should at least specify
+<a class="link" href="gobject-Signals.html#G-SIGNAL-RUN-FIRST:CAPS"><code class="literal">G_SIGNAL_RUN_FIRST</code></a> or <a class="link" href="gobject-Signals.html#G-SIGNAL-RUN-LAST:CAPS"><code class="literal">G_SIGNAL_RUN_LAST</code></a>.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>class_closure</code></em> :</span></p></td>
-<td> The closure to invoke on signal emission; may be <a href="./../glib/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>.
-</td>
+<td>The closure to invoke on signal emission; may be <a href="./../glib/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>accumulator</code></em> :</span></p></td>
-<td> the accumulator for this signal; may be <a href="./../glib/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>.
-</td>
+<td>the accumulator for this signal; may be <a href="./../glib/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>accu_data</code></em> :</span></p></td>
-<td> user data for the <em class="parameter"><code>accumulator</code></em>.
-</td>
+<td>user data for the <em class="parameter"><code>accumulator</code></em>.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>c_marshaller</code></em> :</span></p></td>
-<td> the function to translate arrays of parameter values to
- signal emissions into C language callback invocations.
+<td>the function to translate arrays of parameter
+values to signal emissions into C language callback invocations or <a href="./../glib/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>. <span class="annotation">[<acronym title="NULL is ok, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>return_type</code></em> :</span></p></td>
-<td> the type of return value, or <a class="link" href="gobject-Type-Information.html#G-TYPE-NONE:CAPS" title="G_TYPE_NONE"><span class="type">G_TYPE_NONE</span></a> for a signal
- without a return value.
-</td>
+<td>the type of return value, or <a class="link" href="gobject-Type-Information.html#G-TYPE-NONE:CAPS" title="G_TYPE_NONE"><span class="type">G_TYPE_NONE</span></a> for a signal
+without a return value.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>n_params</code></em> :</span></p></td>
-<td> the number of parameter types in <em class="parameter"><code>args</code></em>.
-</td>
+<td>the number of parameter types in <em class="parameter"><code>args</code></em>.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>args</code></em> :</span></p></td>
-<td> va_list of <a class="link" href="gobject-Type-Information.html#GType" title="GType"><span class="type">GType</span></a>, one for each parameter.
-</td>
+<td>va_list of <a class="link" href="gobject-Type-Information.html#GType" title="GType"><span class="type">GType</span></a>, one for each parameter.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
-<td> the signal id
-</td>
+<td>the signal id</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
-<div class="refsect2" title="g_signal_query ()">
+<div class="refsect2">
<a name="g-signal-query"></a><h3>g_signal_query ()</h3>
-<pre class="programlisting"><span class="returnvalue">void</span> g_signal_query (<a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> signal_id,
- <a class="link" href="gobject-Signals.html#GSignalQuery" title="GSignalQuery"><span class="returnvalue">GSignalQuery</span></a> *query);</pre>
+<pre class="programlisting"><span class="returnvalue">void</span> g_signal_query (<em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> signal_id</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Signals.html#GSignalQuery" title="struct GSignalQuery"><span class="type">GSignalQuery</span></a> *query</code></em>);</pre>
<p>
Queries the signal system for in-depth information about a
specific signal. This function will fill in a user-provided
structure to hold signal-specific information. If an invalid
-signal id is passed in, the <em class="parameter"><code>signal_id</code></em> member of the <a class="link" href="gobject-Signals.html#GSignalQuery" title="GSignalQuery"><span class="type">GSignalQuery</span></a>
-is 0. All members filled into the <a class="link" href="gobject-Signals.html#GSignalQuery" title="GSignalQuery"><span class="type">GSignalQuery</span></a> structure should
-be considered constant and have to be left untouched.</p>
+signal id is passed in, the <em class="parameter"><code>signal_id</code></em> member of the <a class="link" href="gobject-Signals.html#GSignalQuery" title="struct GSignalQuery"><span class="type">GSignalQuery</span></a>
+is 0. All members filled into the <a class="link" href="gobject-Signals.html#GSignalQuery" title="struct GSignalQuery"><span class="type">GSignalQuery</span></a> structure should
+be considered constant and have to be left untouched.
+</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>signal_id</code></em> :</span></p></td>
-<td> The signal id of the signal to query information for.
-</td>
+<td>The signal id of the signal to query information for.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>query</code></em> :</span></p></td>
-<td> A user provided structure that is filled in with constant
- values upon success.
+<td>A user provided structure that is
+filled in with constant values upon success. <span class="annotation">[<acronym title="Parameter for returning results. Default is transfer full."><span class="acronym">out</span></acronym> caller-allocates]</span>
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
-<div class="refsect2" title="g_signal_lookup ()">
+<div class="refsect2">
<a name="g-signal-lookup"></a><h3>g_signal_lookup ()</h3>
-<pre class="programlisting"><a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> g_signal_lookup (const <a href="./../glib/glib/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *name,
- <a class="link" href="gobject-Type-Information.html#GType" title="GType"><span class="returnvalue">GType</span></a> itype);</pre>
+<pre class="programlisting"><a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> g_signal_lookup (<em class="parameter"><code>const <a href="./../glib/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *name</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Type-Information.html#GType" title="GType"><span class="type">GType</span></a> itype</code></em>);</pre>
<p>
Given the name of the signal and the type of object it connects to, gets
the signal's identifying integer. Emitting the signal by number is
Also tries the ancestors of the given type.
</p>
<p>
-See <a class="link" href="gobject-Signals.html#g-signal-new" title="g_signal_new ()"><code class="function">g_signal_new()</code></a> for details on allowed signal names.</p>
+See <a class="link" href="gobject-Signals.html#g-signal-new" title="g_signal_new ()"><code class="function">g_signal_new()</code></a> for details on allowed signal names.
+</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>name</code></em> :</span></p></td>
-<td> the signal's name.
-</td>
+<td>the signal's name.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>itype</code></em> :</span></p></td>
-<td> the type that the signal operates on.
-</td>
+<td>the type that the signal operates on.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
-<td> the signal's identifying number, or 0 if no signal was found.
-</td>
+<td>the signal's identifying number, or 0 if no signal was found.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
-<div class="refsect2" title="g_signal_name ()">
+<div class="refsect2">
<a name="g-signal-name"></a><h3>g_signal_name ()</h3>
-<pre class="programlisting">const <a href="./../glib/glib/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a>* g_signal_name (<a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> signal_id);</pre>
+<pre class="programlisting">const <a href="./../glib/glib/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> * g_signal_name (<em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> signal_id</code></em>);</pre>
<p>
Given the signal's identifier, finds its name.
</p>
<p>
-Two different signals may have the same name, if they have differing types.</p>
+Two different signals may have the same name, if they have differing types.
+</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>signal_id</code></em> :</span></p></td>
-<td> the signal's identifying number.
-</td>
+<td>the signal's identifying number.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
-<td> the signal name, or <a href="./../glib/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> if the signal number was invalid.
-</td>
+<td>the signal name, or <a href="./../glib/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> if the signal number was invalid.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
-<div class="refsect2" title="g_signal_list_ids ()">
+<div class="refsect2">
<a name="g-signal-list-ids"></a><h3>g_signal_list_ids ()</h3>
-<pre class="programlisting"><a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a>* g_signal_list_ids (<a class="link" href="gobject-Type-Information.html#GType" title="GType"><span class="returnvalue">GType</span></a> itype,
- <a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> *n_ids);</pre>
+<pre class="programlisting"><a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> * g_signal_list_ids (<em class="parameter"><code><a class="link" href="gobject-Type-Information.html#GType" title="GType"><span class="type">GType</span></a> itype</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> *n_ids</code></em>);</pre>
<p>
Lists the signals by id that a certain instance or interface type
created. Further information about the signals can be acquired through
-<a class="link" href="gobject-Signals.html#g-signal-query" title="g_signal_query ()"><code class="function">g_signal_query()</code></a>.</p>
+<a class="link" href="gobject-Signals.html#g-signal-query" title="g_signal_query ()"><code class="function">g_signal_query()</code></a>.
+</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>itype</code></em> :</span></p></td>
-<td> Instance or interface type.
-</td>
+<td>Instance or interface type.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>n_ids</code></em> :</span></p></td>
-<td> Location to store the number of signal ids for <em class="parameter"><code>itype</code></em>.
-</td>
+<td>Location to store the number of signal ids for <em class="parameter"><code>itype</code></em>.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
-<td> Newly allocated array of signal IDs.
+<td>Newly allocated array of signal IDs. <span class="annotation">[<acronym title="Parameter points to an array of items."><span class="acronym">array</span></acronym> length=n_ids]</span>
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
-<div class="refsect2" title="g_signal_emit ()">
+<div class="refsect2">
<a name="g-signal-emit"></a><h3>g_signal_emit ()</h3>
-<pre class="programlisting"><span class="returnvalue">void</span> g_signal_emit (<a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a> instance,
- <a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> signal_id,
- <a href="./../glib/glib/glib-Quarks.html#GQuark"><span class="returnvalue">GQuark</span></a> detail,
- ...);</pre>
+<pre class="programlisting"><span class="returnvalue">void</span> g_signal_emit (<em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> instance</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> signal_id</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Quarks.html#GQuark"><span class="type">GQuark</span></a> detail</code></em>,
+ <em class="parameter"><code>...</code></em>);</pre>
<p>
Emits a signal.
</p>
<p>
Note that <a class="link" href="gobject-Signals.html#g-signal-emit" title="g_signal_emit ()"><code class="function">g_signal_emit()</code></a> resets the return value to the default
-if no handlers are connected, in contrast to <a class="link" href="gobject-Signals.html#g-signal-emitv" title="g_signal_emitv ()"><code class="function">g_signal_emitv()</code></a>.</p>
+if no handlers are connected, in contrast to <a class="link" href="gobject-Signals.html#g-signal-emitv" title="g_signal_emitv ()"><code class="function">g_signal_emitv()</code></a>.
+</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>instance</code></em> :</span></p></td>
-<td> the instance the signal is being emitted on.
-</td>
+<td>the instance the signal is being emitted on.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>signal_id</code></em> :</span></p></td>
-<td> the signal id
-</td>
+<td>the signal id</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>detail</code></em> :</span></p></td>
-<td> the detail
-</td>
+<td>the detail</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>...</code></em> :</span></p></td>
-<td> parameters to be passed to the signal, followed by a
- location for the return value. If the return type of the signal
- is <a class="link" href="gobject-Type-Information.html#G-TYPE-NONE:CAPS" title="G_TYPE_NONE"><span class="type">G_TYPE_NONE</span></a>, the return value location can be omitted.
-</td>
+<td>parameters to be passed to the signal, followed by a
+location for the return value. If the return type of the signal
+is <a class="link" href="gobject-Type-Information.html#G-TYPE-NONE:CAPS" title="G_TYPE_NONE"><span class="type">G_TYPE_NONE</span></a>, the return value location can be omitted.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
-<div class="refsect2" title="g_signal_emit_by_name ()">
+<div class="refsect2">
<a name="g-signal-emit-by-name"></a><h3>g_signal_emit_by_name ()</h3>
-<pre class="programlisting"><span class="returnvalue">void</span> g_signal_emit_by_name (<a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a> instance,
- const <a href="./../glib/glib/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *detailed_signal,
- ...);</pre>
+<pre class="programlisting"><span class="returnvalue">void</span> g_signal_emit_by_name (<em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> instance</code></em>,
+ <em class="parameter"><code>const <a href="./../glib/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *detailed_signal</code></em>,
+ <em class="parameter"><code>...</code></em>);</pre>
<p>
Emits a signal.
</p>
<p>
Note that <a class="link" href="gobject-Signals.html#g-signal-emit-by-name" title="g_signal_emit_by_name ()"><code class="function">g_signal_emit_by_name()</code></a> resets the return value to the default
-if no handlers are connected, in contrast to <a class="link" href="gobject-Signals.html#g-signal-emitv" title="g_signal_emitv ()"><code class="function">g_signal_emitv()</code></a>.</p>
+if no handlers are connected, in contrast to <a class="link" href="gobject-Signals.html#g-signal-emitv" title="g_signal_emitv ()"><code class="function">g_signal_emitv()</code></a>.
+</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>instance</code></em> :</span></p></td>
-<td> the instance the signal is being emitted on.
-</td>
+<td>the instance the signal is being emitted on.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>detailed_signal</code></em> :</span></p></td>
-<td> a string of the form "signal-name::detail".
-</td>
+<td>a string of the form "signal-name::detail".</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>...</code></em> :</span></p></td>
-<td> parameters to be passed to the signal, followed by a
- location for the return value. If the return type of the signal
- is <a class="link" href="gobject-Type-Information.html#G-TYPE-NONE:CAPS" title="G_TYPE_NONE"><span class="type">G_TYPE_NONE</span></a>, the return value location can be omitted.
-</td>
+<td>parameters to be passed to the signal, followed by a
+location for the return value. If the return type of the signal
+is <a class="link" href="gobject-Type-Information.html#G-TYPE-NONE:CAPS" title="G_TYPE_NONE"><span class="type">G_TYPE_NONE</span></a>, the return value location can be omitted.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
-<div class="refsect2" title="g_signal_emitv ()">
+<div class="refsect2">
<a name="g-signal-emitv"></a><h3>g_signal_emitv ()</h3>
-<pre class="programlisting"><span class="returnvalue">void</span> g_signal_emitv (const <a class="link" href="gobject-Generic-values.html#GValue" title="GValue"><span class="returnvalue">GValue</span></a> *instance_and_params,
- <a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> signal_id,
- <a href="./../glib/glib/glib-Quarks.html#GQuark"><span class="returnvalue">GQuark</span></a> detail,
- <a class="link" href="gobject-Generic-values.html#GValue" title="GValue"><span class="returnvalue">GValue</span></a> *return_value);</pre>
+<pre class="programlisting"><span class="returnvalue">void</span> g_signal_emitv (<em class="parameter"><code>const <a class="link" href="gobject-Generic-values.html#GValue" title="GValue"><span class="type">GValue</span></a> *instance_and_params</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> signal_id</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Quarks.html#GQuark"><span class="type">GQuark</span></a> detail</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Generic-values.html#GValue" title="GValue"><span class="type">GValue</span></a> *return_value</code></em>);</pre>
<p>
Emits a signal.
</p>
<p>
Note that <a class="link" href="gobject-Signals.html#g-signal-emitv" title="g_signal_emitv ()"><code class="function">g_signal_emitv()</code></a> doesn't change <em class="parameter"><code>return_value</code></em> if no handlers are
-connected, in contrast to <a class="link" href="gobject-Signals.html#g-signal-emit" title="g_signal_emit ()"><code class="function">g_signal_emit()</code></a> and <a class="link" href="gobject-Signals.html#g-signal-emit-valist" title="g_signal_emit_valist ()"><code class="function">g_signal_emit_valist()</code></a>.</p>
+connected, in contrast to <a class="link" href="gobject-Signals.html#g-signal-emit" title="g_signal_emit ()"><code class="function">g_signal_emit()</code></a> and <a class="link" href="gobject-Signals.html#g-signal-emit-valist" title="g_signal_emit_valist ()"><code class="function">g_signal_emit_valist()</code></a>.
+</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>instance_and_params</code></em> :</span></p></td>
-<td> argument list for the signal emission. The first
- element in the array is a <a class="link" href="gobject-Generic-values.html#GValue" title="GValue"><span class="type">GValue</span></a> for the instance the signal is
- being emitted on. The rest are any arguments to be passed to the
- signal.
+<td>argument list for the signal emission.
+The first element in the array is a <a class="link" href="gobject-Generic-values.html#GValue" title="GValue"><span class="type">GValue</span></a> for the instance the signal
+is being emitted on. The rest are any arguments to be passed to the signal. <span class="annotation">[<acronym title="Parameter points to an array of items."><span class="acronym">array</span></acronym>]</span>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>signal_id</code></em> :</span></p></td>
-<td> the signal id
-</td>
+<td>the signal id</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>detail</code></em> :</span></p></td>
-<td> the detail
-</td>
+<td>the detail</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>return_value</code></em> :</span></p></td>
-<td> Location to store the return value of the signal emission.
-</td>
+<td>Location to store the return value of the signal emission.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
-<div class="refsect2" title="g_signal_emit_valist ()">
+<div class="refsect2">
<a name="g-signal-emit-valist"></a><h3>g_signal_emit_valist ()</h3>
-<pre class="programlisting"><span class="returnvalue">void</span> g_signal_emit_valist (<a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a> instance,
- <a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> signal_id,
- <a href="./../glib/glib/glib-Quarks.html#GQuark"><span class="returnvalue">GQuark</span></a> detail,
- <span class="returnvalue">va_list</span> var_args);</pre>
+<pre class="programlisting"><span class="returnvalue">void</span> g_signal_emit_valist (<em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> instance</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> signal_id</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Quarks.html#GQuark"><span class="type">GQuark</span></a> detail</code></em>,
+ <em class="parameter"><code><span class="type">va_list</span> var_args</code></em>);</pre>
<p>
Emits a signal.
</p>
<p>
Note that <a class="link" href="gobject-Signals.html#g-signal-emit-valist" title="g_signal_emit_valist ()"><code class="function">g_signal_emit_valist()</code></a> resets the return value to the default
-if no handlers are connected, in contrast to <a class="link" href="gobject-Signals.html#g-signal-emitv" title="g_signal_emitv ()"><code class="function">g_signal_emitv()</code></a>.</p>
+if no handlers are connected, in contrast to <a class="link" href="gobject-Signals.html#g-signal-emitv" title="g_signal_emitv ()"><code class="function">g_signal_emitv()</code></a>.
+</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>instance</code></em> :</span></p></td>
-<td> the instance the signal is being emitted on.
-</td>
+<td>the instance the signal is being emitted on.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>signal_id</code></em> :</span></p></td>
-<td> the signal id
-</td>
+<td>the signal id</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>detail</code></em> :</span></p></td>
-<td> the detail
-</td>
+<td>the detail</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>var_args</code></em> :</span></p></td>
-<td> a list of parameters to be passed to the signal, followed by a
- location for the return value. If the return type of the signal
- is <a class="link" href="gobject-Type-Information.html#G-TYPE-NONE:CAPS" title="G_TYPE_NONE"><span class="type">G_TYPE_NONE</span></a>, the return value location can be omitted.
-</td>
+<td>a list of parameters to be passed to the signal, followed by a
+location for the return value. If the return type of the signal
+is <a class="link" href="gobject-Type-Information.html#G-TYPE-NONE:CAPS" title="G_TYPE_NONE"><span class="type">G_TYPE_NONE</span></a>, the return value location can be omitted.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
-<div class="refsect2" title="g_signal_connect()">
+<div class="refsect2">
<a name="g-signal-connect"></a><h3>g_signal_connect()</h3>
<pre class="programlisting">#define g_signal_connect(instance, detailed_signal, c_handler, data)</pre>
<p>
Connects a <a class="link" href="gobject-Closures.html#GCallback" title="GCallback ()"><span class="type">GCallback</span></a> function to a signal for a particular object.
</p>
<p>
-The handler will be called before the default handler of the signal.</p>
+The handler will be called before the default handler of the signal.
+</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>instance</code></em> :</span></p></td>
-<td> the instance to connect to.
-</td>
+<td>the instance to connect to.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>detailed_signal</code></em> :</span></p></td>
-<td> a string of the form "signal-name::detail".
-</td>
+<td>a string of the form "signal-name::detail".</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>c_handler</code></em> :</span></p></td>
-<td> the <a class="link" href="gobject-Closures.html#GCallback" title="GCallback ()"><span class="type">GCallback</span></a> to connect.
-</td>
+<td>the <a class="link" href="gobject-Closures.html#GCallback" title="GCallback ()"><span class="type">GCallback</span></a> to connect.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>data</code></em> :</span></p></td>
-<td> data to pass to <em class="parameter"><code>c_handler</code></em> calls.
-</td>
+<td>data to pass to <em class="parameter"><code>c_handler</code></em> calls.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
-<td> the handler id
-</td>
+<td>the handler id</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
-<div class="refsect2" title="g_signal_connect_after()">
+<div class="refsect2">
<a name="g-signal-connect-after"></a><h3>g_signal_connect_after()</h3>
<pre class="programlisting">#define g_signal_connect_after(instance, detailed_signal, c_handler, data)</pre>
<p>
Connects a <a class="link" href="gobject-Closures.html#GCallback" title="GCallback ()"><span class="type">GCallback</span></a> function to a signal for a particular object.
</p>
<p>
-The handler will be called after the default handler of the signal.</p>
+The handler will be called after the default handler of the signal.
+</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>instance</code></em> :</span></p></td>
-<td> the instance to connect to.
-</td>
+<td>the instance to connect to.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>detailed_signal</code></em> :</span></p></td>
-<td> a string of the form "signal-name::detail".
-</td>
+<td>a string of the form "signal-name::detail".</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>c_handler</code></em> :</span></p></td>
-<td> the <a class="link" href="gobject-Closures.html#GCallback" title="GCallback ()"><span class="type">GCallback</span></a> to connect.
-</td>
+<td>the <a class="link" href="gobject-Closures.html#GCallback" title="GCallback ()"><span class="type">GCallback</span></a> to connect.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>data</code></em> :</span></p></td>
-<td> data to pass to <em class="parameter"><code>c_handler</code></em> calls.
-</td>
+<td>data to pass to <em class="parameter"><code>c_handler</code></em> calls.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
-<td> the handler id
-</td>
+<td>the handler id</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
-<div class="refsect2" title="g_signal_connect_swapped()">
+<div class="refsect2">
<a name="g-signal-connect-swapped"></a><h3>g_signal_connect_swapped()</h3>
<pre class="programlisting">#define g_signal_connect_swapped(instance, detailed_signal, c_handler, data)</pre>
<p>
</p>
<p>
The instance on which the signal is emitted and <em class="parameter"><code>data</code></em> will be swapped when
-calling the handler.</p>
+calling the handler.
+</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>instance</code></em> :</span></p></td>
-<td> the instance to connect to.
-</td>
+<td>the instance to connect to.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>detailed_signal</code></em> :</span></p></td>
-<td> a string of the form "signal-name::detail".
-</td>
+<td>a string of the form "signal-name::detail".</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>c_handler</code></em> :</span></p></td>
-<td> the <a class="link" href="gobject-Closures.html#GCallback" title="GCallback ()"><span class="type">GCallback</span></a> to connect.
-</td>
+<td>the <a class="link" href="gobject-Closures.html#GCallback" title="GCallback ()"><span class="type">GCallback</span></a> to connect.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>data</code></em> :</span></p></td>
-<td> data to pass to <em class="parameter"><code>c_handler</code></em> calls.
-</td>
+<td>data to pass to <em class="parameter"><code>c_handler</code></em> calls.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
-<td> the handler id
-</td>
+<td>the handler id</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
-<div class="refsect2" title="g_signal_connect_object ()">
+<div class="refsect2">
<a name="g-signal-connect-object"></a><h3>g_signal_connect_object ()</h3>
-<pre class="programlisting"><a href="./../glib/glib/glib-Basic-Types.html#gulong"><span class="returnvalue">gulong</span></a> g_signal_connect_object (<a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a> instance,
- const <a href="./../glib/glib/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *detailed_signal,
- <a class="link" href="gobject-Closures.html#GCallback" title="GCallback ()"><span class="returnvalue">GCallback</span></a> c_handler,
- <a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a> gobject,
- <a class="link" href="gobject-Signals.html#GConnectFlags" title="enum GConnectFlags"><span class="returnvalue">GConnectFlags</span></a> connect_flags);</pre>
+<pre class="programlisting"><a href="./../glib/glib/glib-Basic-Types.html#gulong"><span class="returnvalue">gulong</span></a> g_signal_connect_object (<em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> instance</code></em>,
+ <em class="parameter"><code>const <a href="./../glib/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *detailed_signal</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Closures.html#GCallback" title="GCallback ()"><span class="type">GCallback</span></a> c_handler</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> gobject</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Signals.html#GConnectFlags" title="enum GConnectFlags"><span class="type">GConnectFlags</span></a> connect_flags</code></em>);</pre>
<p>
This is similar to <a class="link" href="gobject-Signals.html#g-signal-connect-data" title="g_signal_connect_data ()"><code class="function">g_signal_connect_data()</code></a>, but uses a closure which
ensures that the <em class="parameter"><code>gobject</code></em> stays alive during the call to <em class="parameter"><code>c_handler</code></em>
continue to work with future versions of GObject by checking
that the signal handler is still connected before disconnected it:
</p>
-<div class="informalexample"><pre class="programlisting">
- if (g_signal_handler_is_connected (instance, id))
- g_signal_handler_disconnect (instance, id);
-</pre></div>
+<div class="informalexample">
+ <table class="listing_frame" border="0" cellpadding="0" cellspacing="0">
+ <tbody>
+ <tr>
+ <td class="listing_lines" align="right"><pre>1
+2</pre></td>
+ <td class="listing_code"><pre class="programlisting"><span class="keyword">if</span><span class="normal"> </span><span class="symbol">(</span><span class="function"><a href="gobject-Signals.html#g-signal-handler-is-connected">g_signal_handler_is_connected</a></span><span class="normal"> </span><span class="symbol">(</span><span class="normal">instance</span><span class="symbol">,</span><span class="normal"> id</span><span class="symbol">))</span>
+<span class="normal"> </span><span class="function"><a href="gobject-Signals.html#g-signal-handler-disconnect">g_signal_handler_disconnect</a></span><span class="normal"> </span><span class="symbol">(</span><span class="normal">instance</span><span class="symbol">,</span><span class="normal"> id</span><span class="symbol">);</span></pre></td>
+ </tr>
+ </tbody>
+ </table>
+</div>
+
+<p>
+</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>instance</code></em> :</span></p></td>
-<td> the instance to connect to.
-</td>
+<td>the instance to connect to.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>detailed_signal</code></em> :</span></p></td>
-<td> a string of the form "signal-name::detail".
-</td>
+<td>a string of the form "signal-name::detail".</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>c_handler</code></em> :</span></p></td>
-<td> the <a class="link" href="gobject-Closures.html#GCallback" title="GCallback ()"><span class="type">GCallback</span></a> to connect.
-</td>
+<td>the <a class="link" href="gobject-Closures.html#GCallback" title="GCallback ()"><span class="type">GCallback</span></a> to connect.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>gobject</code></em> :</span></p></td>
-<td> the object to pass as data to <em class="parameter"><code>c_handler</code></em>.
-</td>
+<td>the object to pass as data to <em class="parameter"><code>c_handler</code></em>.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>connect_flags</code></em> :</span></p></td>
-<td> a combination of <span class="type">GConnnectFlags</span>.
-</td>
+<td>a combination of <a class="link" href="gobject-Signals.html#GConnectFlags" title="enum GConnectFlags"><span class="type">GConnectFlags</span></a>.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
-<td> the handler id.
-</td>
+<td>the handler id.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
-<div class="refsect2" title="enum GConnectFlags">
+<div class="refsect2">
<a name="GConnectFlags"></a><h3>enum GConnectFlags</h3>
-<pre class="programlisting">typedef enum
-{
+<pre class="programlisting">typedef enum {
G_CONNECT_AFTER = 1 << 0,
G_CONNECT_SWAPPED = 1 << 1
} GConnectFlags;
</pre>
<p>
The connection flags are used to specify the behaviour of a signal's
-connection.</p>
+connection.
+</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><a name="G-CONNECT-AFTER:CAPS"></a><span class="term"><code class="literal">G_CONNECT_AFTER</code></span></p></td>
-<td> whether the handler should be called before or after the
+<td>whether the handler should be called before or after the
default handler of the signal.
</td>
</tr>
<tr>
<td><p><a name="G-CONNECT-SWAPPED:CAPS"></a><span class="term"><code class="literal">G_CONNECT_SWAPPED</code></span></p></td>
-<td> whether the instance and data should be swapped when
+<td>whether the instance and data should be swapped when
calling the handler.
</td>
</tr>
</table></div>
</div>
<hr>
-<div class="refsect2" title="g_signal_connect_data ()">
+<div class="refsect2">
<a name="g-signal-connect-data"></a><h3>g_signal_connect_data ()</h3>
-<pre class="programlisting"><a href="./../glib/glib/glib-Basic-Types.html#gulong"><span class="returnvalue">gulong</span></a> g_signal_connect_data (<a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a> instance,
- const <a href="./../glib/glib/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *detailed_signal,
- <a class="link" href="gobject-Closures.html#GCallback" title="GCallback ()"><span class="returnvalue">GCallback</span></a> c_handler,
- <a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a> data,
- <a class="link" href="gobject-Closures.html#GClosureNotify" title="GClosureNotify ()"><span class="returnvalue">GClosureNotify</span></a> destroy_data,
- <a class="link" href="gobject-Signals.html#GConnectFlags" title="enum GConnectFlags"><span class="returnvalue">GConnectFlags</span></a> connect_flags);</pre>
+<pre class="programlisting"><a href="./../glib/glib/glib-Basic-Types.html#gulong"><span class="returnvalue">gulong</span></a> g_signal_connect_data (<em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> instance</code></em>,
+ <em class="parameter"><code>const <a href="./../glib/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *detailed_signal</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Closures.html#GCallback" title="GCallback ()"><span class="type">GCallback</span></a> c_handler</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> data</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Closures.html#GClosureNotify" title="GClosureNotify ()"><span class="type">GClosureNotify</span></a> destroy_data</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Signals.html#GConnectFlags" title="enum GConnectFlags"><span class="type">GConnectFlags</span></a> connect_flags</code></em>);</pre>
<p>
Connects a <a class="link" href="gobject-Closures.html#GCallback" title="GCallback ()"><span class="type">GCallback</span></a> function to a signal for a particular object. Similar
to <a class="link" href="gobject-Signals.html#g-signal-connect" title="g_signal_connect()"><code class="function">g_signal_connect()</code></a>, but allows to provide a <a class="link" href="gobject-Closures.html#GClosureNotify" title="GClosureNotify ()"><span class="type">GClosureNotify</span></a> for the data
which will be called when the signal handler is disconnected and no longer
used. Specify <em class="parameter"><code>connect_flags</code></em> if you need <code class="literal">..._after()</code> or
-<code class="literal">..._swapped()</code> variants of this function.</p>
+<code class="literal">..._swapped()</code> variants of this function.
+</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>instance</code></em> :</span></p></td>
-<td> the instance to connect to.
-</td>
+<td>the instance to connect to.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>detailed_signal</code></em> :</span></p></td>
-<td> a string of the form "signal-name::detail".
-</td>
+<td>a string of the form "signal-name::detail".</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>c_handler</code></em> :</span></p></td>
-<td> the <a class="link" href="gobject-Closures.html#GCallback" title="GCallback ()"><span class="type">GCallback</span></a> to connect.
-</td>
+<td>the <a class="link" href="gobject-Closures.html#GCallback" title="GCallback ()"><span class="type">GCallback</span></a> to connect.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>data</code></em> :</span></p></td>
-<td> data to pass to <em class="parameter"><code>c_handler</code></em> calls.
-</td>
+<td>data to pass to <em class="parameter"><code>c_handler</code></em> calls.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>destroy_data</code></em> :</span></p></td>
-<td> a <a class="link" href="gobject-Closures.html#GClosureNotify" title="GClosureNotify ()"><span class="type">GClosureNotify</span></a> for <em class="parameter"><code>data</code></em>.
-</td>
+<td>a <a class="link" href="gobject-Closures.html#GClosureNotify" title="GClosureNotify ()"><span class="type">GClosureNotify</span></a> for <em class="parameter"><code>data</code></em>.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>connect_flags</code></em> :</span></p></td>
-<td> a combination of <a class="link" href="gobject-Signals.html#GConnectFlags" title="enum GConnectFlags"><span class="type">GConnectFlags</span></a>.
-</td>
+<td>a combination of <a class="link" href="gobject-Signals.html#GConnectFlags" title="enum GConnectFlags"><span class="type">GConnectFlags</span></a>.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
-<td> the handler id
-</td>
+<td>the handler id</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
-<div class="refsect2" title="g_signal_connect_closure ()">
+<div class="refsect2">
<a name="g-signal-connect-closure"></a><h3>g_signal_connect_closure ()</h3>
-<pre class="programlisting"><a href="./../glib/glib/glib-Basic-Types.html#gulong"><span class="returnvalue">gulong</span></a> g_signal_connect_closure (<a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a> instance,
- const <a href="./../glib/glib/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *detailed_signal,
- <a class="link" href="gobject-Closures.html#GClosure" title="GClosure"><span class="returnvalue">GClosure</span></a> *closure,
- <a href="./../glib/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> after);</pre>
+<pre class="programlisting"><a href="./../glib/glib/glib-Basic-Types.html#gulong"><span class="returnvalue">gulong</span></a> g_signal_connect_closure (<em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> instance</code></em>,
+ <em class="parameter"><code>const <a href="./../glib/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *detailed_signal</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Closures.html#GClosure" title="struct GClosure"><span class="type">GClosure</span></a> *closure</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> after</code></em>);</pre>
<p>
-Connects a closure to a signal for a particular object.</p>
+Connects a closure to a signal for a particular object.
+</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>instance</code></em> :</span></p></td>
-<td> the instance to connect to.
-</td>
+<td>the instance to connect to.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>detailed_signal</code></em> :</span></p></td>
-<td> a string of the form "signal-name::detail".
-</td>
+<td>a string of the form "signal-name::detail".</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>closure</code></em> :</span></p></td>
-<td> the closure to connect.
-</td>
+<td>the closure to connect.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>after</code></em> :</span></p></td>
-<td> whether the handler should be called before or after the
- default handler of the signal.
-</td>
+<td>whether the handler should be called before or after the
+default handler of the signal.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
-<td> the handler id
-</td>
+<td>the handler id</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
-<div class="refsect2" title="g_signal_connect_closure_by_id ()">
+<div class="refsect2">
<a name="g-signal-connect-closure-by-id"></a><h3>g_signal_connect_closure_by_id ()</h3>
-<pre class="programlisting"><a href="./../glib/glib/glib-Basic-Types.html#gulong"><span class="returnvalue">gulong</span></a> g_signal_connect_closure_by_id (<a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a> instance,
- <a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> signal_id,
- <a href="./../glib/glib/glib-Quarks.html#GQuark"><span class="returnvalue">GQuark</span></a> detail,
- <a class="link" href="gobject-Closures.html#GClosure" title="GClosure"><span class="returnvalue">GClosure</span></a> *closure,
- <a href="./../glib/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> after);</pre>
+<pre class="programlisting"><a href="./../glib/glib/glib-Basic-Types.html#gulong"><span class="returnvalue">gulong</span></a> g_signal_connect_closure_by_id (<em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> instance</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> signal_id</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Quarks.html#GQuark"><span class="type">GQuark</span></a> detail</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Closures.html#GClosure" title="struct GClosure"><span class="type">GClosure</span></a> *closure</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> after</code></em>);</pre>
<p>
-Connects a closure to a signal for a particular object.</p>
+Connects a closure to a signal for a particular object.
+</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>instance</code></em> :</span></p></td>
-<td> the instance to connect to.
-</td>
+<td>the instance to connect to.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>signal_id</code></em> :</span></p></td>
-<td> the id of the signal.
-</td>
+<td>the id of the signal.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>detail</code></em> :</span></p></td>
-<td> the detail.
-</td>
+<td>the detail.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>closure</code></em> :</span></p></td>
-<td> the closure to connect.
-</td>
+<td>the closure to connect.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>after</code></em> :</span></p></td>
-<td> whether the handler should be called before or after the
- default handler of the signal.
-</td>
+<td>whether the handler should be called before or after the
+default handler of the signal.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
-<td> the handler id
-</td>
+<td>the handler id</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
-<div class="refsect2" title="g_signal_handler_block ()">
+<div class="refsect2">
<a name="g-signal-handler-block"></a><h3>g_signal_handler_block ()</h3>
-<pre class="programlisting"><span class="returnvalue">void</span> g_signal_handler_block (<a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a> instance,
- <a href="./../glib/glib/glib-Basic-Types.html#gulong"><span class="returnvalue">gulong</span></a> handler_id);</pre>
+<pre class="programlisting"><span class="returnvalue">void</span> g_signal_handler_block (<em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> instance</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gulong"><span class="type">gulong</span></a> handler_id</code></em>);</pre>
<p>
Blocks a handler of an instance so it will not be called during any
signal emissions unless it is unblocked again. Thus "blocking" a
</p>
<p>
The <em class="parameter"><code>handler_id</code></em> has to be a valid signal handler id, connected to a
-signal of <em class="parameter"><code>instance</code></em>.</p>
+signal of <em class="parameter"><code>instance</code></em>.
+</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>instance</code></em> :</span></p></td>
-<td> The instance to block the signal handler of.
-</td>
+<td>The instance to block the signal handler of.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>handler_id</code></em> :</span></p></td>
-<td> Handler id of the handler to be blocked.
-</td>
+<td>Handler id of the handler to be blocked.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
-<div class="refsect2" title="g_signal_handler_unblock ()">
+<div class="refsect2">
<a name="g-signal-handler-unblock"></a><h3>g_signal_handler_unblock ()</h3>
-<pre class="programlisting"><span class="returnvalue">void</span> g_signal_handler_unblock (<a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a> instance,
- <a href="./../glib/glib/glib-Basic-Types.html#gulong"><span class="returnvalue">gulong</span></a> handler_id);</pre>
+<pre class="programlisting"><span class="returnvalue">void</span> g_signal_handler_unblock (<em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> instance</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gulong"><span class="type">gulong</span></a> handler_id</code></em>);</pre>
<p>
Undoes the effect of a previous <a class="link" href="gobject-Signals.html#g-signal-handler-block" title="g_signal_handler_block ()"><code class="function">g_signal_handler_block()</code></a> call. A
blocked handler is skipped during signal emissions and will not be
</p>
<p>
The <em class="parameter"><code>handler_id</code></em> has to be a valid id of a signal handler that is
-connected to a signal of <em class="parameter"><code>instance</code></em> and is currently blocked.</p>
+connected to a signal of <em class="parameter"><code>instance</code></em> and is currently blocked.
+</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>instance</code></em> :</span></p></td>
-<td> The instance to unblock the signal handler of.
-</td>
+<td>The instance to unblock the signal handler of.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>handler_id</code></em> :</span></p></td>
-<td> Handler id of the handler to be unblocked.
-</td>
+<td>Handler id of the handler to be unblocked.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
-<div class="refsect2" title="g_signal_handler_disconnect ()">
+<div class="refsect2">
<a name="g-signal-handler-disconnect"></a><h3>g_signal_handler_disconnect ()</h3>
-<pre class="programlisting"><span class="returnvalue">void</span> g_signal_handler_disconnect (<a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a> instance,
- <a href="./../glib/glib/glib-Basic-Types.html#gulong"><span class="returnvalue">gulong</span></a> handler_id);</pre>
+<pre class="programlisting"><span class="returnvalue">void</span> g_signal_handler_disconnect (<em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> instance</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gulong"><span class="type">gulong</span></a> handler_id</code></em>);</pre>
<p>
Disconnects a handler from an instance so it will not be called during
any future or currently ongoing emissions of the signal it has been
</p>
<p>
The <em class="parameter"><code>handler_id</code></em> has to be a valid signal handler id, connected to a
-signal of <em class="parameter"><code>instance</code></em>.</p>
+signal of <em class="parameter"><code>instance</code></em>.
+</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>instance</code></em> :</span></p></td>
-<td> The instance to remove the signal handler from.
-</td>
+<td>The instance to remove the signal handler from.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>handler_id</code></em> :</span></p></td>
-<td> Handler id of the handler to be disconnected.
-</td>
+<td>Handler id of the handler to be disconnected.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
-<div class="refsect2" title="g_signal_handler_find ()">
+<div class="refsect2">
<a name="g-signal-handler-find"></a><h3>g_signal_handler_find ()</h3>
-<pre class="programlisting"><a href="./../glib/glib/glib-Basic-Types.html#gulong"><span class="returnvalue">gulong</span></a> g_signal_handler_find (<a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a> instance,
- <a class="link" href="gobject-Signals.html#GSignalMatchType" title="enum GSignalMatchType"><span class="returnvalue">GSignalMatchType</span></a> mask,
- <a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> signal_id,
- <a href="./../glib/glib/glib-Quarks.html#GQuark"><span class="returnvalue">GQuark</span></a> detail,
- <a class="link" href="gobject-Closures.html#GClosure" title="GClosure"><span class="returnvalue">GClosure</span></a> *closure,
- <a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a> func,
- <a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a> data);</pre>
+<pre class="programlisting"><a href="./../glib/glib/glib-Basic-Types.html#gulong"><span class="returnvalue">gulong</span></a> g_signal_handler_find (<em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> instance</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Signals.html#GSignalMatchType" title="enum GSignalMatchType"><span class="type">GSignalMatchType</span></a> mask</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> signal_id</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Quarks.html#GQuark"><span class="type">GQuark</span></a> detail</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Closures.html#GClosure" title="struct GClosure"><span class="type">GClosure</span></a> *closure</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> func</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> data</code></em>);</pre>
<p>
Finds the first signal handler that matches certain selection criteria.
The criteria mask is passed as an OR-ed combination of <a class="link" href="gobject-Signals.html#GSignalMatchType" title="enum GSignalMatchType"><span class="type">GSignalMatchType</span></a>
flags, and the criteria values are passed as arguments.
The match <em class="parameter"><code>mask</code></em> has to be non-0 for successful matches.
-If no handler was found, 0 is returned.</p>
+If no handler was found, 0 is returned.
+</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>instance</code></em> :</span></p></td>
-<td> The instance owning the signal handler to be found.
-</td>
+<td>The instance owning the signal handler to be found.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>mask</code></em> :</span></p></td>
-<td> Mask indicating which of <em class="parameter"><code>signal_id</code></em>, <em class="parameter"><code>detail</code></em>, <em class="parameter"><code>closure</code></em>, <em class="parameter"><code>func</code></em>
- and/or <em class="parameter"><code>data</code></em> the handler has to match.
-</td>
+<td>Mask indicating which of <em class="parameter"><code>signal_id</code></em>, <em class="parameter"><code>detail</code></em>, <em class="parameter"><code>closure</code></em>, <em class="parameter"><code>func</code></em>
+and/or <em class="parameter"><code>data</code></em> the handler has to match.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>signal_id</code></em> :</span></p></td>
-<td> Signal the handler has to be connected to.
-</td>
+<td>Signal the handler has to be connected to.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>detail</code></em> :</span></p></td>
-<td> Signal detail the handler has to be connected to.
-</td>
+<td>Signal detail the handler has to be connected to.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>closure</code></em> :</span></p></td>
-<td> The closure the handler will invoke.
+<td>The closure the handler will invoke. <span class="annotation">[<acronym title="NULL is ok, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>func</code></em> :</span></p></td>
-<td> The C closure callback of the handler (useless for non-C closures).
-</td>
+<td>The C closure callback of the handler (useless for non-C closures).</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>data</code></em> :</span></p></td>
-<td> The closure data of the handler's closure.
-</td>
+<td>The closure data of the handler's closure.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
-<td> A valid non-0 signal handler id for a successful match.
-</td>
+<td>A valid non-0 signal handler id for a successful match.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
-<div class="refsect2" title="g_signal_handlers_block_matched ()">
+<div class="refsect2">
<a name="g-signal-handlers-block-matched"></a><h3>g_signal_handlers_block_matched ()</h3>
-<pre class="programlisting"><a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> g_signal_handlers_block_matched (<a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a> instance,
- <a class="link" href="gobject-Signals.html#GSignalMatchType" title="enum GSignalMatchType"><span class="returnvalue">GSignalMatchType</span></a> mask,
- <a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> signal_id,
- <a href="./../glib/glib/glib-Quarks.html#GQuark"><span class="returnvalue">GQuark</span></a> detail,
- <a class="link" href="gobject-Closures.html#GClosure" title="GClosure"><span class="returnvalue">GClosure</span></a> *closure,
- <a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a> func,
- <a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a> data);</pre>
+<pre class="programlisting"><a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> g_signal_handlers_block_matched (<em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> instance</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Signals.html#GSignalMatchType" title="enum GSignalMatchType"><span class="type">GSignalMatchType</span></a> mask</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> signal_id</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Quarks.html#GQuark"><span class="type">GQuark</span></a> detail</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Closures.html#GClosure" title="struct GClosure"><span class="type">GClosure</span></a> *closure</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> func</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> data</code></em>);</pre>
<p>
Blocks all handlers on an instance that match a certain selection criteria.
The criteria mask is passed as an OR-ed combination of <a class="link" href="gobject-Signals.html#GSignalMatchType" title="enum GSignalMatchType"><span class="type">GSignalMatchType</span></a>
Passing at least one of the <a class="link" href="gobject-Signals.html#G-SIGNAL-MATCH-CLOSURE:CAPS"><code class="literal">G_SIGNAL_MATCH_CLOSURE</code></a>, <a class="link" href="gobject-Signals.html#G-SIGNAL-MATCH-FUNC:CAPS"><code class="literal">G_SIGNAL_MATCH_FUNC</code></a>
or <a class="link" href="gobject-Signals.html#G-SIGNAL-MATCH-DATA:CAPS"><code class="literal">G_SIGNAL_MATCH_DATA</code></a> match flags is required for successful matches.
If no handlers were found, 0 is returned, the number of blocked handlers
-otherwise.</p>
+otherwise.
+</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>instance</code></em> :</span></p></td>
-<td> The instance to block handlers from.
-</td>
+<td>The instance to block handlers from.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>mask</code></em> :</span></p></td>
-<td> Mask indicating which of <em class="parameter"><code>signal_id</code></em>, <em class="parameter"><code>detail</code></em>, <em class="parameter"><code>closure</code></em>, <em class="parameter"><code>func</code></em>
- and/or <em class="parameter"><code>data</code></em> the handlers have to match.
-</td>
+<td>Mask indicating which of <em class="parameter"><code>signal_id</code></em>, <em class="parameter"><code>detail</code></em>, <em class="parameter"><code>closure</code></em>, <em class="parameter"><code>func</code></em>
+and/or <em class="parameter"><code>data</code></em> the handlers have to match.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>signal_id</code></em> :</span></p></td>
-<td> Signal the handlers have to be connected to.
-</td>
+<td>Signal the handlers have to be connected to.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>detail</code></em> :</span></p></td>
-<td> Signal detail the handlers have to be connected to.
-</td>
+<td>Signal detail the handlers have to be connected to.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>closure</code></em> :</span></p></td>
-<td> The closure the handlers will invoke.
+<td>The closure the handlers will invoke. <span class="annotation">[<acronym title="NULL is ok, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>func</code></em> :</span></p></td>
-<td> The C closure callback of the handlers (useless for non-C closures).
-</td>
+<td>The C closure callback of the handlers (useless for non-C closures).</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>data</code></em> :</span></p></td>
-<td> The closure data of the handlers' closures.
-</td>
+<td>The closure data of the handlers' closures.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
-<td> The number of handlers that matched.
-</td>
+<td>The number of handlers that matched.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
-<div class="refsect2" title="g_signal_handlers_unblock_matched ()">
+<div class="refsect2">
<a name="g-signal-handlers-unblock-matched"></a><h3>g_signal_handlers_unblock_matched ()</h3>
-<pre class="programlisting"><a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> g_signal_handlers_unblock_matched (<a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a> instance,
- <a class="link" href="gobject-Signals.html#GSignalMatchType" title="enum GSignalMatchType"><span class="returnvalue">GSignalMatchType</span></a> mask,
- <a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> signal_id,
- <a href="./../glib/glib/glib-Quarks.html#GQuark"><span class="returnvalue">GQuark</span></a> detail,
- <a class="link" href="gobject-Closures.html#GClosure" title="GClosure"><span class="returnvalue">GClosure</span></a> *closure,
- <a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a> func,
- <a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a> data);</pre>
+<pre class="programlisting"><a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> g_signal_handlers_unblock_matched (<em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> instance</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Signals.html#GSignalMatchType" title="enum GSignalMatchType"><span class="type">GSignalMatchType</span></a> mask</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> signal_id</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Quarks.html#GQuark"><span class="type">GQuark</span></a> detail</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Closures.html#GClosure" title="struct GClosure"><span class="type">GClosure</span></a> *closure</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> func</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> data</code></em>);</pre>
<p>
Unblocks all handlers on an instance that match a certain selection
criteria. The criteria mask is passed as an OR-ed combination of
or <a class="link" href="gobject-Signals.html#G-SIGNAL-MATCH-DATA:CAPS"><code class="literal">G_SIGNAL_MATCH_DATA</code></a> match flags is required for successful matches.
If no handlers were found, 0 is returned, the number of unblocked handlers
otherwise. The match criteria should not apply to any handlers that are
-not currently blocked.</p>
+not currently blocked.
+</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>instance</code></em> :</span></p></td>
-<td> The instance to unblock handlers from.
-</td>
+<td>The instance to unblock handlers from.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>mask</code></em> :</span></p></td>
-<td> Mask indicating which of <em class="parameter"><code>signal_id</code></em>, <em class="parameter"><code>detail</code></em>, <em class="parameter"><code>closure</code></em>, <em class="parameter"><code>func</code></em>
- and/or <em class="parameter"><code>data</code></em> the handlers have to match.
-</td>
+<td>Mask indicating which of <em class="parameter"><code>signal_id</code></em>, <em class="parameter"><code>detail</code></em>, <em class="parameter"><code>closure</code></em>, <em class="parameter"><code>func</code></em>
+and/or <em class="parameter"><code>data</code></em> the handlers have to match.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>signal_id</code></em> :</span></p></td>
-<td> Signal the handlers have to be connected to.
-</td>
+<td>Signal the handlers have to be connected to.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>detail</code></em> :</span></p></td>
-<td> Signal detail the handlers have to be connected to.
-</td>
+<td>Signal detail the handlers have to be connected to.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>closure</code></em> :</span></p></td>
-<td> The closure the handlers will invoke.
+<td>The closure the handlers will invoke. <span class="annotation">[<acronym title="NULL is ok, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>func</code></em> :</span></p></td>
-<td> The C closure callback of the handlers (useless for non-C closures).
-</td>
+<td>The C closure callback of the handlers (useless for non-C closures).</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>data</code></em> :</span></p></td>
-<td> The closure data of the handlers' closures.
-</td>
+<td>The closure data of the handlers' closures.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
-<td> The number of handlers that matched.
-</td>
+<td>The number of handlers that matched.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
-<div class="refsect2" title="g_signal_handlers_disconnect_matched ()">
+<div class="refsect2">
<a name="g-signal-handlers-disconnect-matched"></a><h3>g_signal_handlers_disconnect_matched ()</h3>
<pre class="programlisting"><a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> g_signal_handlers_disconnect_matched
- (<a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a> instance,
- <a class="link" href="gobject-Signals.html#GSignalMatchType" title="enum GSignalMatchType"><span class="returnvalue">GSignalMatchType</span></a> mask,
- <a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> signal_id,
- <a href="./../glib/glib/glib-Quarks.html#GQuark"><span class="returnvalue">GQuark</span></a> detail,
- <a class="link" href="gobject-Closures.html#GClosure" title="GClosure"><span class="returnvalue">GClosure</span></a> *closure,
- <a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a> func,
- <a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a> data);</pre>
+ (<em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> instance</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Signals.html#GSignalMatchType" title="enum GSignalMatchType"><span class="type">GSignalMatchType</span></a> mask</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> signal_id</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Quarks.html#GQuark"><span class="type">GQuark</span></a> detail</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Closures.html#GClosure" title="struct GClosure"><span class="type">GClosure</span></a> *closure</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> func</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> data</code></em>);</pre>
<p>
Disconnects all handlers on an instance that match a certain
selection criteria. The criteria mask is passed as an OR-ed
<a class="link" href="gobject-Signals.html#G-SIGNAL-MATCH-CLOSURE:CAPS"><code class="literal">G_SIGNAL_MATCH_CLOSURE</code></a>, <a class="link" href="gobject-Signals.html#G-SIGNAL-MATCH-FUNC:CAPS"><code class="literal">G_SIGNAL_MATCH_FUNC</code></a> or
<a class="link" href="gobject-Signals.html#G-SIGNAL-MATCH-DATA:CAPS"><code class="literal">G_SIGNAL_MATCH_DATA</code></a> match flags is required for successful
matches. If no handlers were found, 0 is returned, the number of
-disconnected handlers otherwise.</p>
+disconnected handlers otherwise.
+</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>instance</code></em> :</span></p></td>
-<td> The instance to remove handlers from.
-</td>
+<td>The instance to remove handlers from.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>mask</code></em> :</span></p></td>
-<td> Mask indicating which of <em class="parameter"><code>signal_id</code></em>, <em class="parameter"><code>detail</code></em>, <em class="parameter"><code>closure</code></em>, <em class="parameter"><code>func</code></em>
- and/or <em class="parameter"><code>data</code></em> the handlers have to match.
-</td>
+<td>Mask indicating which of <em class="parameter"><code>signal_id</code></em>, <em class="parameter"><code>detail</code></em>, <em class="parameter"><code>closure</code></em>, <em class="parameter"><code>func</code></em>
+and/or <em class="parameter"><code>data</code></em> the handlers have to match.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>signal_id</code></em> :</span></p></td>
-<td> Signal the handlers have to be connected to.
-</td>
+<td>Signal the handlers have to be connected to.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>detail</code></em> :</span></p></td>
-<td> Signal detail the handlers have to be connected to.
-</td>
+<td>Signal detail the handlers have to be connected to.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>closure</code></em> :</span></p></td>
-<td> The closure the handlers will invoke.
+<td>The closure the handlers will invoke. <span class="annotation">[<acronym title="NULL is ok, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>func</code></em> :</span></p></td>
-<td> The C closure callback of the handlers (useless for non-C closures).
-</td>
+<td>The C closure callback of the handlers (useless for non-C closures).</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>data</code></em> :</span></p></td>
-<td> The closure data of the handlers' closures.
-</td>
+<td>The closure data of the handlers' closures.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
-<td> The number of handlers that matched.
-</td>
+<td>The number of handlers that matched.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
-<div class="refsect2" title="g_signal_handler_is_connected ()">
+<div class="refsect2">
<a name="g-signal-handler-is-connected"></a><h3>g_signal_handler_is_connected ()</h3>
-<pre class="programlisting"><a href="./../glib/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> g_signal_handler_is_connected (<a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a> instance,
- <a href="./../glib/glib/glib-Basic-Types.html#gulong"><span class="returnvalue">gulong</span></a> handler_id);</pre>
+<pre class="programlisting"><a href="./../glib/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> g_signal_handler_is_connected (<em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> instance</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gulong"><span class="type">gulong</span></a> handler_id</code></em>);</pre>
<p>
-Returns whether <em class="parameter"><code>handler_id</code></em> is the id of a handler connected to <em class="parameter"><code>instance</code></em>.</p>
+Returns whether <em class="parameter"><code>handler_id</code></em> is the id of a handler connected to <em class="parameter"><code>instance</code></em>.
+</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>instance</code></em> :</span></p></td>
-<td> The instance where a signal handler is sought.
-</td>
+<td>The instance where a signal handler is sought.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>handler_id</code></em> :</span></p></td>
-<td> the handler id.
-</td>
+<td>the handler id.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
-<td> whether <em class="parameter"><code>handler_id</code></em> identifies a handler connected to <em class="parameter"><code>instance</code></em>.
-</td>
+<td>whether <em class="parameter"><code>handler_id</code></em> identifies a handler connected to <em class="parameter"><code>instance</code></em>.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
-<div class="refsect2" title="g_signal_handlers_block_by_func()">
+<div class="refsect2">
<a name="g-signal-handlers-block-by-func"></a><h3>g_signal_handlers_block_by_func()</h3>
<pre class="programlisting">#define g_signal_handlers_block_by_func(instance, func, data)</pre>
<p>
-Blocks all handlers on an instance that match <em class="parameter"><code>func</code></em> and <em class="parameter"><code>data</code></em>.</p>
+Blocks all handlers on an instance that match <em class="parameter"><code>func</code></em> and <em class="parameter"><code>data</code></em>.
+</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>instance</code></em> :</span></p></td>
-<td> The instance to block handlers from.
-</td>
+<td>The instance to block handlers from.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>func</code></em> :</span></p></td>
-<td> The C closure callback of the handlers (useless for non-C closures).
-</td>
+<td>The C closure callback of the handlers (useless for non-C closures).</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>data</code></em> :</span></p></td>
-<td> The closure data of the handlers' closures.
-</td>
+<td>The closure data of the handlers' closures.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
-<td> The number of handlers that matched.
-</td>
+<td>The number of handlers that matched.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
-<div class="refsect2" title="g_signal_handlers_unblock_by_func()">
+<div class="refsect2">
<a name="g-signal-handlers-unblock-by-func"></a><h3>g_signal_handlers_unblock_by_func()</h3>
<pre class="programlisting">#define g_signal_handlers_unblock_by_func(instance, func, data)</pre>
<p>
-Unblocks all handlers on an instance that match <em class="parameter"><code>func</code></em> and <em class="parameter"><code>data</code></em>.</p>
+Unblocks all handlers on an instance that match <em class="parameter"><code>func</code></em> and <em class="parameter"><code>data</code></em>.
+</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>instance</code></em> :</span></p></td>
-<td> The instance to unblock handlers from.
-</td>
+<td>The instance to unblock handlers from.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>func</code></em> :</span></p></td>
-<td> The C closure callback of the handlers (useless for non-C closures).
-</td>
+<td>The C closure callback of the handlers (useless for non-C closures).</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>data</code></em> :</span></p></td>
-<td> The closure data of the handlers' closures.
-</td>
+<td>The closure data of the handlers' closures.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
-<td> The number of handlers that matched.
-</td>
+<td>The number of handlers that matched.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
-<div class="refsect2" title="g_signal_handlers_disconnect_by_func()">
+<div class="refsect2">
<a name="g-signal-handlers-disconnect-by-func"></a><h3>g_signal_handlers_disconnect_by_func()</h3>
<pre class="programlisting">#define g_signal_handlers_disconnect_by_func(instance, func, data)</pre>
<p>
-Disconnects all handlers on an instance that match <em class="parameter"><code>func</code></em> and <em class="parameter"><code>data</code></em>.</p>
+Disconnects all handlers on an instance that match <em class="parameter"><code>func</code></em> and <em class="parameter"><code>data</code></em>.
+</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>instance</code></em> :</span></p></td>
-<td> The instance to remove handlers from.
-</td>
+<td>The instance to remove handlers from.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>func</code></em> :</span></p></td>
-<td> The C closure callback of the handlers (useless for non-C closures).
-</td>
+<td>The C closure callback of the handlers (useless for non-C closures).</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>data</code></em> :</span></p></td>
-<td> The closure data of the handlers' closures.
-</td>
+<td>The closure data of the handlers' closures.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
-<td> The number of handlers that matched.
-</td>
+<td>The number of handlers that matched.</td>
+</tr>
+</tbody>
+</table></div>
+</div>
+<hr>
+<div class="refsect2">
+<a name="g-signal-handlers-disconnect-by-data"></a><h3>g_signal_handlers_disconnect_by_data()</h3>
+<pre class="programlisting">#define g_signal_handlers_disconnect_by_data(instance, data)</pre>
+<p>
+Disconnects all handlers on an instance that match <em class="parameter"><code>data</code></em>.
+</p>
+<div class="variablelist"><table border="0">
+<col align="left" valign="top">
+<tbody>
+<tr>
+<td><p><span class="term"><em class="parameter"><code>instance</code></em> :</span></p></td>
+<td>The instance to remove handlers from</td>
+</tr>
+<tr>
+<td><p><span class="term"><em class="parameter"><code>data</code></em> :</span></p></td>
+<td>the closure data of the handlers' closures</td>
+</tr>
+<tr>
+<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
+<td>The number of handlers that matched.</td>
</tr>
</tbody>
</table></div>
+<p class="since">Since 2.32</p>
</div>
<hr>
-<div class="refsect2" title="g_signal_has_handler_pending ()">
+<div class="refsect2">
<a name="g-signal-has-handler-pending"></a><h3>g_signal_has_handler_pending ()</h3>
-<pre class="programlisting"><a href="./../glib/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> g_signal_has_handler_pending (<a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a> instance,
- <a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> signal_id,
- <a href="./../glib/glib/glib-Quarks.html#GQuark"><span class="returnvalue">GQuark</span></a> detail,
- <a href="./../glib/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> may_be_blocked);</pre>
+<pre class="programlisting"><a href="./../glib/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> g_signal_has_handler_pending (<em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> instance</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> signal_id</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Quarks.html#GQuark"><span class="type">GQuark</span></a> detail</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> may_be_blocked</code></em>);</pre>
<p>
Returns whether there are any handlers connected to <em class="parameter"><code>instance</code></em> for the
given signal id and detail.
One example of when you might use this is when the arguments to the
signal are difficult to compute. A class implementor may opt to not
emit the signal if no one is attached anyway, thus saving the cost
-of building the arguments.</p>
+of building the arguments.
+</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>instance</code></em> :</span></p></td>
-<td> the object whose signal handlers are sought.
-</td>
+<td>the object whose signal handlers are sought.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>signal_id</code></em> :</span></p></td>
-<td> the signal id.
-</td>
+<td>the signal id.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>detail</code></em> :</span></p></td>
-<td> the detail.
-</td>
+<td>the detail.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>may_be_blocked</code></em> :</span></p></td>
-<td> whether blocked handlers should count as match.
-</td>
+<td>whether blocked handlers should count as match.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
-<td> <a href="./../glib/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if a handler is connected to the signal, <a href="./../glib/glib/glib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a>
- otherwise.
-</td>
+<td>
+<a href="./../glib/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if a handler is connected to the signal, <a href="./../glib/glib/glib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a>
+otherwise.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
-<div class="refsect2" title="g_signal_stop_emission ()">
+<div class="refsect2">
<a name="g-signal-stop-emission"></a><h3>g_signal_stop_emission ()</h3>
-<pre class="programlisting"><span class="returnvalue">void</span> g_signal_stop_emission (<a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a> instance,
- <a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> signal_id,
- <a href="./../glib/glib/glib-Quarks.html#GQuark"><span class="returnvalue">GQuark</span></a> detail);</pre>
+<pre class="programlisting"><span class="returnvalue">void</span> g_signal_stop_emission (<em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> instance</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> signal_id</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Quarks.html#GQuark"><span class="type">GQuark</span></a> detail</code></em>);</pre>
<p>
Stops a signal's current emission.
</p>
flag).
</p>
<p>
-Prints a warning if used on a signal which isn't being emitted.</p>
+Prints a warning if used on a signal which isn't being emitted.
+</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>instance</code></em> :</span></p></td>
-<td> the object whose signal handlers you wish to stop.
-</td>
+<td>the object whose signal handlers you wish to stop.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>signal_id</code></em> :</span></p></td>
-<td> the signal identifier, as returned by <a class="link" href="gobject-Signals.html#g-signal-lookup" title="g_signal_lookup ()"><code class="function">g_signal_lookup()</code></a>.
-</td>
+<td>the signal identifier, as returned by <a class="link" href="gobject-Signals.html#g-signal-lookup" title="g_signal_lookup ()"><code class="function">g_signal_lookup()</code></a>.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>detail</code></em> :</span></p></td>
-<td> the detail which the signal was emitted with.
-</td>
+<td>the detail which the signal was emitted with.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
-<div class="refsect2" title="g_signal_stop_emission_by_name ()">
+<div class="refsect2">
<a name="g-signal-stop-emission-by-name"></a><h3>g_signal_stop_emission_by_name ()</h3>
-<pre class="programlisting"><span class="returnvalue">void</span> g_signal_stop_emission_by_name (<a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a> instance,
- const <a href="./../glib/glib/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *detailed_signal);</pre>
+<pre class="programlisting"><span class="returnvalue">void</span> g_signal_stop_emission_by_name (<em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> instance</code></em>,
+ <em class="parameter"><code>const <a href="./../glib/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *detailed_signal</code></em>);</pre>
<p>
Stops a signal's current emission.
</p>
<p>
This is just like <a class="link" href="gobject-Signals.html#g-signal-stop-emission" title="g_signal_stop_emission ()"><code class="function">g_signal_stop_emission()</code></a> except it will look up the
-signal id for you.</p>
+signal id for you.
+</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>instance</code></em> :</span></p></td>
-<td> the object whose signal handlers you wish to stop.
-</td>
+<td>the object whose signal handlers you wish to stop.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>detailed_signal</code></em> :</span></p></td>
-<td> a string of the form "signal-name::detail".
-</td>
+<td>a string of the form "signal-name::detail".</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
-<div class="refsect2" title="g_signal_override_class_closure ()">
+<div class="refsect2">
<a name="g-signal-override-class-closure"></a><h3>g_signal_override_class_closure ()</h3>
-<pre class="programlisting"><span class="returnvalue">void</span> g_signal_override_class_closure (<a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> signal_id,
- <a class="link" href="gobject-Type-Information.html#GType" title="GType"><span class="returnvalue">GType</span></a> instance_type,
- <a class="link" href="gobject-Closures.html#GClosure" title="GClosure"><span class="returnvalue">GClosure</span></a> *class_closure);</pre>
+<pre class="programlisting"><span class="returnvalue">void</span> g_signal_override_class_closure (<em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> signal_id</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Type-Information.html#GType" title="GType"><span class="type">GType</span></a> instance_type</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Closures.html#GClosure" title="struct GClosure"><span class="type">GClosure</span></a> *class_closure</code></em>);</pre>
<p>
Overrides the class closure (i.e. the default handler) for the given signal
for emissions on instances of <em class="parameter"><code>instance_type</code></em>. <em class="parameter"><code>instance_type</code></em> must be derived
<p>
See <a class="link" href="gobject-Signals.html#g-signal-chain-from-overridden" title="g_signal_chain_from_overridden ()"><code class="function">g_signal_chain_from_overridden()</code></a> and
<a class="link" href="gobject-Signals.html#g-signal-chain-from-overridden-handler" title="g_signal_chain_from_overridden_handler ()"><code class="function">g_signal_chain_from_overridden_handler()</code></a> for how to chain up to the
-parent class closure from inside the overridden one.</p>
+parent class closure from inside the overridden one.
+</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>signal_id</code></em> :</span></p></td>
-<td> the signal id
-</td>
+<td>the signal id</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>instance_type</code></em> :</span></p></td>
-<td> the instance type on which to override the class closure
- for the signal.
-</td>
+<td>the instance type on which to override the class closure
+for the signal.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>class_closure</code></em> :</span></p></td>
-<td> the closure.
-</td>
+<td>the closure.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
-<div class="refsect2" title="g_signal_chain_from_overridden ()">
+<div class="refsect2">
<a name="g-signal-chain-from-overridden"></a><h3>g_signal_chain_from_overridden ()</h3>
-<pre class="programlisting"><span class="returnvalue">void</span> g_signal_chain_from_overridden (const <a class="link" href="gobject-Generic-values.html#GValue" title="GValue"><span class="returnvalue">GValue</span></a> *instance_and_params,
- <a class="link" href="gobject-Generic-values.html#GValue" title="GValue"><span class="returnvalue">GValue</span></a> *return_value);</pre>
+<pre class="programlisting"><span class="returnvalue">void</span> g_signal_chain_from_overridden (<em class="parameter"><code>const <a class="link" href="gobject-Generic-values.html#GValue" title="GValue"><span class="type">GValue</span></a> *instance_and_params</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Generic-values.html#GValue" title="GValue"><span class="type">GValue</span></a> *return_value</code></em>);</pre>
<p>
Calls the original class closure of a signal. This function should only
be called from an overridden class closure; see
<a class="link" href="gobject-Signals.html#g-signal-override-class-closure" title="g_signal_override_class_closure ()"><code class="function">g_signal_override_class_closure()</code></a> and
-<a class="link" href="gobject-Signals.html#g-signal-override-class-handler" title="g_signal_override_class_handler ()"><code class="function">g_signal_override_class_handler()</code></a>.</p>
+<a class="link" href="gobject-Signals.html#g-signal-override-class-handler" title="g_signal_override_class_handler ()"><code class="function">g_signal_override_class_handler()</code></a>.
+</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>instance_and_params</code></em> :</span></p></td>
-<td> the argument list of the signal emission. The first
- element in the array is a <a class="link" href="gobject-Generic-values.html#GValue" title="GValue"><span class="type">GValue</span></a> for the instance the signal is being
- emitted on. The rest are any arguments to be passed to the signal.
-</td>
+<td>(array) the argument list of the signal emission.
+The first element in the array is a <a class="link" href="gobject-Generic-values.html#GValue" title="GValue"><span class="type">GValue</span></a> for the instance the signal
+is being emitted on. The rest are any arguments to be passed to the signal.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>return_value</code></em> :</span></p></td>
-<td> Location for the return value.
-</td>
+<td>Location for the return value.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
-<div class="refsect2" title="g_signal_new_class_handler ()">
+<div class="refsect2">
<a name="g-signal-new-class-handler"></a><h3>g_signal_new_class_handler ()</h3>
-<pre class="programlisting"><a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> g_signal_new_class_handler (const <a href="./../glib/glib/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *signal_name,
- <a class="link" href="gobject-Type-Information.html#GType" title="GType"><span class="returnvalue">GType</span></a> itype,
- <a class="link" href="gobject-Signals.html#GSignalFlags" title="enum GSignalFlags"><span class="returnvalue">GSignalFlags</span></a> signal_flags,
- <a class="link" href="gobject-Closures.html#GCallback" title="GCallback ()"><span class="returnvalue">GCallback</span></a> class_handler,
- <a class="link" href="gobject-Signals.html#GSignalAccumulator" title="GSignalAccumulator ()"><span class="returnvalue">GSignalAccumulator</span></a> accumulator,
- <a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a> accu_data,
- <a class="link" href="gobject-Signals.html#GSignalCMarshaller" title="GSignalCMarshaller"><span class="returnvalue">GSignalCMarshaller</span></a> c_marshaller,
- <a class="link" href="gobject-Type-Information.html#GType" title="GType"><span class="returnvalue">GType</span></a> return_type,
- <a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> n_params,
- ...);</pre>
+<pre class="programlisting"><a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> g_signal_new_class_handler (<em class="parameter"><code>const <a href="./../glib/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *signal_name</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Type-Information.html#GType" title="GType"><span class="type">GType</span></a> itype</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Signals.html#GSignalFlags" title="enum GSignalFlags"><span class="type">GSignalFlags</span></a> signal_flags</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Closures.html#GCallback" title="GCallback ()"><span class="type">GCallback</span></a> class_handler</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Signals.html#GSignalAccumulator" title="GSignalAccumulator ()"><span class="type">GSignalAccumulator</span></a> accumulator</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> accu_data</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Signals.html#GSignalCMarshaller" title="GSignalCMarshaller"><span class="type">GSignalCMarshaller</span></a> c_marshaller</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Type-Information.html#GType" title="GType"><span class="type">GType</span></a> return_type</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> n_params</code></em>,
+ <em class="parameter"><code>...</code></em>);</pre>
<p>
Creates a new signal. (This is usually done in the class initializer.)
</p>
<a class="link" href="gobject-Signals.html#g-signal-chain-from-overridden-handler" title="g_signal_chain_from_overridden_handler ()"><code class="function">g_signal_chain_from_overridden_handler()</code></a>.
</p>
<p>
-See <a class="link" href="gobject-Signals.html#g-signal-new" title="g_signal_new ()"><code class="function">g_signal_new()</code></a> for information about signal names.</p>
+See <a class="link" href="gobject-Signals.html#g-signal-new" title="g_signal_new ()"><code class="function">g_signal_new()</code></a> for information about signal names.
+</p>
+<p>
+If c_marshaller is <a href="./../glib/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> <em class="parameter"><code>g_cclosure_marshal_generic</code></em> will be used as
+the marshaller for this signal.
+</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>signal_name</code></em> :</span></p></td>
-<td> the name for the signal
-</td>
+<td>the name for the signal</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>itype</code></em> :</span></p></td>
-<td> the type this signal pertains to. It will also pertain to
- types which are derived from this type.
-</td>
+<td>the type this signal pertains to. It will also pertain to
+types which are derived from this type.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>signal_flags</code></em> :</span></p></td>
-<td> a combination of <a class="link" href="gobject-Signals.html#GSignalFlags" title="enum GSignalFlags"><span class="type">GSignalFlags</span></a> specifying detail of when
- the default handler is to be invoked. You should at least specify
- <a class="link" href="gobject-Signals.html#G-SIGNAL-RUN-FIRST:CAPS"><code class="literal">G_SIGNAL_RUN_FIRST</code></a> or <a class="link" href="gobject-Signals.html#G-SIGNAL-RUN-LAST:CAPS"><code class="literal">G_SIGNAL_RUN_LAST</code></a>.
-</td>
+<td>a combination of <a class="link" href="gobject-Signals.html#GSignalFlags" title="enum GSignalFlags"><span class="type">GSignalFlags</span></a> specifying detail of when
+the default handler is to be invoked. You should at least specify
+<a class="link" href="gobject-Signals.html#G-SIGNAL-RUN-FIRST:CAPS"><code class="literal">G_SIGNAL_RUN_FIRST</code></a> or <a class="link" href="gobject-Signals.html#G-SIGNAL-RUN-LAST:CAPS"><code class="literal">G_SIGNAL_RUN_LAST</code></a>.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>class_handler</code></em> :</span></p></td>
-<td> a <a class="link" href="gobject-Closures.html#GCallback" title="GCallback ()"><span class="type">GCallback</span></a> which acts as class implementation of
- this signal. Used to invoke a class method generically. Pass <a href="./../glib/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> to
- not associate a class method with this signal.
-</td>
+<td>a <a class="link" href="gobject-Closures.html#GCallback" title="GCallback ()"><span class="type">GCallback</span></a> which acts as class implementation of
+this signal. Used to invoke a class method generically. Pass <a href="./../glib/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> to
+not associate a class method with this signal.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>accumulator</code></em> :</span></p></td>
-<td> the accumulator for this signal; may be <a href="./../glib/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>.
-</td>
+<td>the accumulator for this signal; may be <a href="./../glib/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>accu_data</code></em> :</span></p></td>
-<td> user data for the <em class="parameter"><code>accumulator</code></em>.
-</td>
+<td>user data for the <em class="parameter"><code>accumulator</code></em>.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>c_marshaller</code></em> :</span></p></td>
-<td> the function to translate arrays of parameter values to
- signal emissions into C language callback invocations.
+<td>the function to translate arrays of parameter
+values to signal emissions into C language callback invocations or <a href="./../glib/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>. <span class="annotation">[<acronym title="NULL is ok, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>return_type</code></em> :</span></p></td>
-<td> the type of return value, or <a class="link" href="gobject-Type-Information.html#G-TYPE-NONE:CAPS" title="G_TYPE_NONE"><span class="type">G_TYPE_NONE</span></a> for a signal
- without a return value.
-</td>
+<td>the type of return value, or <a class="link" href="gobject-Type-Information.html#G-TYPE-NONE:CAPS" title="G_TYPE_NONE"><span class="type">G_TYPE_NONE</span></a> for a signal
+without a return value.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>n_params</code></em> :</span></p></td>
-<td> the number of parameter types to follow.
-</td>
+<td>the number of parameter types to follow.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>...</code></em> :</span></p></td>
-<td> a list of types, one for each parameter.
-</td>
+<td>a list of types, one for each parameter.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
-<td> the signal id
-
-</td>
+<td>the signal id</td>
</tr>
</tbody>
</table></div>
<p class="since">Since 2.18</p>
</div>
<hr>
-<div class="refsect2" title="g_signal_override_class_handler ()">
+<div class="refsect2">
<a name="g-signal-override-class-handler"></a><h3>g_signal_override_class_handler ()</h3>
-<pre class="programlisting"><span class="returnvalue">void</span> g_signal_override_class_handler (const <a href="./../glib/glib/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *signal_name,
- <a class="link" href="gobject-Type-Information.html#GType" title="GType"><span class="returnvalue">GType</span></a> instance_type,
- <a class="link" href="gobject-Closures.html#GCallback" title="GCallback ()"><span class="returnvalue">GCallback</span></a> class_handler);</pre>
+<pre class="programlisting"><span class="returnvalue">void</span> g_signal_override_class_handler (<em class="parameter"><code>const <a href="./../glib/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *signal_name</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Type-Information.html#GType" title="GType"><span class="type">GType</span></a> instance_type</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Closures.html#GCallback" title="GCallback ()"><span class="type">GCallback</span></a> class_handler</code></em>);</pre>
<p>
Overrides the class closure (i.e. the default handler) for the
given signal for emissions on instances of <em class="parameter"><code>instance_type</code></em> with
<p>
See <a class="link" href="gobject-Signals.html#g-signal-chain-from-overridden" title="g_signal_chain_from_overridden ()"><code class="function">g_signal_chain_from_overridden()</code></a> and
<a class="link" href="gobject-Signals.html#g-signal-chain-from-overridden-handler" title="g_signal_chain_from_overridden_handler ()"><code class="function">g_signal_chain_from_overridden_handler()</code></a> for how to chain up to the
-parent class closure from inside the overridden one.</p>
+parent class closure from inside the overridden one.
+</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>signal_name</code></em> :</span></p></td>
-<td> the name for the signal
-</td>
+<td>the name for the signal</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>instance_type</code></em> :</span></p></td>
-<td> the instance type on which to override the class handler
- for the signal.
-</td>
+<td>the instance type on which to override the class handler
+for the signal.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>class_handler</code></em> :</span></p></td>
-<td> the handler.
-</td>
+<td>the handler.</td>
</tr>
</tbody>
</table></div>
<p class="since">Since 2.18</p>
</div>
<hr>
-<div class="refsect2" title="g_signal_chain_from_overridden_handler ()">
+<div class="refsect2">
<a name="g-signal-chain-from-overridden-handler"></a><h3>g_signal_chain_from_overridden_handler ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> g_signal_chain_from_overridden_handler
- (<a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a> instance,
- ...);</pre>
+ (<em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> instance</code></em>,
+ <em class="parameter"><code>...</code></em>);</pre>
<p>
Calls the original class closure of a signal. This function should
only be called from an overridden class closure; see
<a class="link" href="gobject-Signals.html#g-signal-override-class-closure" title="g_signal_override_class_closure ()"><code class="function">g_signal_override_class_closure()</code></a> and
-<a class="link" href="gobject-Signals.html#g-signal-override-class-handler" title="g_signal_override_class_handler ()"><code class="function">g_signal_override_class_handler()</code></a>.</p>
+<a class="link" href="gobject-Signals.html#g-signal-override-class-handler" title="g_signal_override_class_handler ()"><code class="function">g_signal_override_class_handler()</code></a>.
+</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>instance</code></em> :</span></p></td>
-<td> the instance the signal is being emitted on.
-</td>
+<td>the instance the signal is being emitted on.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>...</code></em> :</span></p></td>
-<td> parameters to be passed to the parent class closure, followed by a
- location for the return value. If the return type of the signal
- is <a class="link" href="gobject-Type-Information.html#G-TYPE-NONE:CAPS" title="G_TYPE_NONE"><span class="type">G_TYPE_NONE</span></a>, the return value location can be omitted.
-</td>
+<td>parameters to be passed to the parent class closure, followed by a
+location for the return value. If the return type of the signal
+is <a class="link" href="gobject-Type-Information.html#G-TYPE-NONE:CAPS" title="G_TYPE_NONE"><span class="type">G_TYPE_NONE</span></a>, the return value location can be omitted.</td>
</tr>
</tbody>
</table></div>
<p class="since">Since 2.18</p>
</div>
<hr>
-<div class="refsect2" title="g_signal_add_emission_hook ()">
+<div class="refsect2">
<a name="g-signal-add-emission-hook"></a><h3>g_signal_add_emission_hook ()</h3>
-<pre class="programlisting"><a href="./../glib/glib/glib-Basic-Types.html#gulong"><span class="returnvalue">gulong</span></a> g_signal_add_emission_hook (<a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> signal_id,
- <a href="./../glib/glib/glib-Quarks.html#GQuark"><span class="returnvalue">GQuark</span></a> detail,
- <a class="link" href="gobject-Signals.html#GSignalEmissionHook" title="GSignalEmissionHook ()"><span class="returnvalue">GSignalEmissionHook</span></a> hook_func,
- <a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a> hook_data,
- <a href="./../glib/glib/glib-Datasets.html#GDestroyNotify"><span class="returnvalue">GDestroyNotify</span></a> data_destroy);</pre>
+<pre class="programlisting"><a href="./../glib/glib/glib-Basic-Types.html#gulong"><span class="returnvalue">gulong</span></a> g_signal_add_emission_hook (<em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> signal_id</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Quarks.html#GQuark"><span class="type">GQuark</span></a> detail</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Signals.html#GSignalEmissionHook" title="GSignalEmissionHook ()"><span class="type">GSignalEmissionHook</span></a> hook_func</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> hook_data</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Datasets.html#GDestroyNotify"><span class="type">GDestroyNotify</span></a> data_destroy</code></em>);</pre>
<p>
Adds an emission hook for a signal, which will get called for any emission
of that signal, independent of the instance. This is possible only
-for signals which don't have <a class="link" href="gobject-Signals.html#G-SIGNAL-NO-HOOKS:CAPS"><span class="type">G_SIGNAL_NO_HOOKS</span></a> flag set.</p>
+for signals which don't have <a class="link" href="gobject-Signals.html#G-SIGNAL-NO-HOOKS:CAPS"><span class="type">G_SIGNAL_NO_HOOKS</span></a> flag set.
+</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>signal_id</code></em> :</span></p></td>
-<td> the signal identifier, as returned by <a class="link" href="gobject-Signals.html#g-signal-lookup" title="g_signal_lookup ()"><code class="function">g_signal_lookup()</code></a>.
-</td>
+<td>the signal identifier, as returned by <a class="link" href="gobject-Signals.html#g-signal-lookup" title="g_signal_lookup ()"><code class="function">g_signal_lookup()</code></a>.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>detail</code></em> :</span></p></td>
-<td> the detail on which to call the hook.
-</td>
+<td>the detail on which to call the hook.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>hook_func</code></em> :</span></p></td>
-<td> a <a class="link" href="gobject-Signals.html#GSignalEmissionHook" title="GSignalEmissionHook ()"><span class="type">GSignalEmissionHook</span></a> function.
-</td>
+<td>a <a class="link" href="gobject-Signals.html#GSignalEmissionHook" title="GSignalEmissionHook ()"><span class="type">GSignalEmissionHook</span></a> function.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>hook_data</code></em> :</span></p></td>
-<td> user data for <em class="parameter"><code>hook_func</code></em>.
-</td>
+<td>user data for <em class="parameter"><code>hook_func</code></em>.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>data_destroy</code></em> :</span></p></td>
-<td> a <a href="./../glib/glib/glib-Datasets.html#GDestroyNotify"><span class="type">GDestroyNotify</span></a> for <em class="parameter"><code>hook_data</code></em>.
-</td>
+<td>a <a href="./../glib/glib/glib-Datasets.html#GDestroyNotify"><span class="type">GDestroyNotify</span></a> for <em class="parameter"><code>hook_data</code></em>.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
-<td> the hook id, for later use with <a class="link" href="gobject-Signals.html#g-signal-remove-emission-hook" title="g_signal_remove_emission_hook ()"><code class="function">g_signal_remove_emission_hook()</code></a>.
-</td>
+<td>the hook id, for later use with <a class="link" href="gobject-Signals.html#g-signal-remove-emission-hook" title="g_signal_remove_emission_hook ()"><code class="function">g_signal_remove_emission_hook()</code></a>.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
-<div class="refsect2" title="g_signal_remove_emission_hook ()">
+<div class="refsect2">
<a name="g-signal-remove-emission-hook"></a><h3>g_signal_remove_emission_hook ()</h3>
-<pre class="programlisting"><span class="returnvalue">void</span> g_signal_remove_emission_hook (<a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> signal_id,
- <a href="./../glib/glib/glib-Basic-Types.html#gulong"><span class="returnvalue">gulong</span></a> hook_id);</pre>
+<pre class="programlisting"><span class="returnvalue">void</span> g_signal_remove_emission_hook (<em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> signal_id</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gulong"><span class="type">gulong</span></a> hook_id</code></em>);</pre>
<p>
-Deletes an emission hook.</p>
+Deletes an emission hook.
+</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>signal_id</code></em> :</span></p></td>
-<td> the id of the signal
-</td>
+<td>the id of the signal</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>hook_id</code></em> :</span></p></td>
-<td> the id of the emission hook, as returned by
-
<a class="link" href="gobject-Signals.html#g-signal-add-emission-hook" title="g_signal_add_emission_hook ()"><code class="function">g_signal_add_emission_hook()</code></a>
+<td>the id of the emission hook, as returned by
+<a class="link" href="gobject-Signals.html#g-signal-add-emission-hook" title="g_signal_add_emission_hook ()"><code class="function">g_signal_add_emission_hook()</code></a>
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
-<div class="refsect2" title="g_signal_parse_name ()">
+<div class="refsect2">
<a name="g-signal-parse-name"></a><h3>g_signal_parse_name ()</h3>
-<pre class="programlisting"><a href="./../glib/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> g_signal_parse_name (const <a href="./../glib/glib/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *detailed_signal,
- <a class="link" href="gobject-Type-Information.html#GType" title="GType"><span class="returnvalue">GType</span></a> itype,
- <a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> *signal_id_p,
- <a href="./../glib/glib/glib-Quarks.html#GQuark"><span class="returnvalue">GQuark</span></a> *detail_p,
- <a href="./../glib/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> force_detail_quark);</pre>
+<pre class="programlisting"><a href="./../glib/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> g_signal_parse_name (<em class="parameter"><code>const <a href="./../glib/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *detailed_signal</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Type-Information.html#GType" title="GType"><span class="type">GType</span></a> itype</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> *signal_id_p</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Quarks.html#GQuark"><span class="type">GQuark</span></a> *detail_p</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> force_detail_quark</code></em>);</pre>
<p>
Internal function to parse a signal name into its <em class="parameter"><code>signal_id</code></em>
-and <em class="parameter"><code>detail</code></em> quark.</p>
+and <em class="parameter"><code>detail</code></em> quark.
+</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>detailed_signal</code></em> :</span></p></td>
-<td> a string of the form "signal-name::detail".
-</td>
+<td>a string of the form "signal-name::detail".</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>itype</code></em> :</span></p></td>
-<td> The interface/instance type that introduced "signal-name".
-</td>
+<td>The interface/instance type that introduced "signal-name".</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>signal_id_p</code></em> :</span></p></td>
-<td> Location to store the signal id.
+<td>Location to store the signal id. <span class="annotation">[<acronym title="Parameter for returning results. Default is transfer full."><span class="acronym">out</span></acronym>]</span>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>detail_p</code></em> :</span></p></td>
-<td> Location to store the detail quark.
+<td>Location to store the detail quark. <span class="annotation">[<acronym title="Parameter for returning results. Default is transfer full."><span class="acronym">out</span></acronym>]</span>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>force_detail_quark</code></em> :</span></p></td>
-<td> <a href="./../glib/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> forces creation of a <a href="./../glib/glib/glib-Quarks.html#GQuark"><span class="type">GQuark</span></a> for the detail.
-</td>
+<td>
+<a href="./../glib/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> forces creation of a <a href="./../glib/glib/glib-Quarks.html#GQuark"><span class="type">GQuark</span></a> for the detail.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
-<td> Whether the signal name could successfully be parsed and <em class="parameter"><code>signal_id_p</code></em> and <em class="parameter"><code>detail_p</code></em> contain valid return values.
-</td>
+<td>Whether the signal name could successfully be parsed and <em class="parameter"><code>signal_id_p</code></em> and <em class="parameter"><code>detail_p</code></em> contain valid return values.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
-<div class="refsect2" title="g_signal_get_invocation_hint ()">
+<div class="refsect2">
<a name="g-signal-get-invocation-hint"></a><h3>g_signal_get_invocation_hint ()</h3>
-<pre class="programlisting"><a class="link" href="gobject-Signals.html#GSignalInvocationHint" title="GSignalInvocationHint"><span class="returnvalue">GSignalInvocationHint</span></a>* g_signal_get_invocation_hint (<a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a> instance);</pre>
+<pre class="programlisting"><a class="link" href="gobject-Signals.html#GSignalInvocationHint" title="struct GSignalInvocationHint"><span class="returnvalue">GSignalInvocationHint</span></a> * g_signal_get_invocation_hint (<em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> instance</code></em>);</pre>
<p>
-Returns the invocation hint of the innermost signal emission of instance.</p>
+Returns the invocation hint of the innermost signal emission of instance.
+</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>instance</code></em> :</span></p></td>
-<td> the instance to query
-</td>
+<td>the instance to query</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
-<td> the invocation hint of the innermost signal emission.
+<td>the invocation hint of the innermost signal emission. <span class="annotation">[<acronym title="Don't free data after the code is done."><span class="acronym">transfer none</span></acronym>]</span>
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
-<div class="refsect2" title="g_signal_type_cclosure_new ()">
+<div class="refsect2">
<a name="g-signal-type-cclosure-new"></a><h3>g_signal_type_cclosure_new ()</h3>
-<pre class="programlisting"><a class="link" href="gobject-Closures.html#GClosure" title="GClosure"><span class="returnvalue">GClosure</span></a>* g_signal_type_cclosure_new (<a class="link" href="gobject-Type-Information.html#GType" title="GType"><span class="returnvalue">GType</span></a> itype,
- <a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="returnvalue">guint</span></a> struct_offset);</pre>
+<pre class="programlisting"><a class="link" href="gobject-Closures.html#GClosure" title="struct GClosure"><span class="returnvalue">GClosure</span></a> * g_signal_type_cclosure_new (<em class="parameter"><code><a class="link" href="gobject-Type-Information.html#GType" title="GType"><span class="type">GType</span></a> itype</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a> struct_offset</code></em>);</pre>
<p>
Creates a new closure which invokes the function found at the offset
<em class="parameter"><code>struct_offset</code></em> in the class structure of the interface or classed type
-identified by <em class="parameter"><code>itype</code></em>.</p>
+identified by <em class="parameter"><code>itype</code></em>.
+</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>itype</code></em> :</span></p></td>
-<td> the <a class="link" href="gobject-Type-Information.html#GType" title="GType"><span class="type">GType</span></a> identifier of an interface or classed type
-</td>
+<td>the <a class="link" href="gobject-Type-Information.html#GType" title="GType"><span class="type">GType</span></a> identifier of an interface or classed type</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>struct_offset</code></em> :</span></p></td>
-<td> the offset of the member function of <em class="parameter"><code>itype</code></em>'s class
- structure which is to be invoked by the new closure
-</td>
+<td>the offset of the member function of <em class="parameter"><code>itype</code></em>'s class
+structure which is to be invoked by the new closure</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
-<td> a new <a class="link" href="gobject-Closures.html#GCClosure" title="GCClosure"><span class="type">GCClosure</span></a>
+<td>a new <a class="link" href="gobject-Closures.html#GCClosure" title="struct GCClosure"><span class="type">GCClosure</span></a>
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
-<div class="refsect2" title="g_signal_accumulator_true_handled ()">
+<div class="refsect2">
+<a name="g-signal-accumulator-first-wins"></a><h3>g_signal_accumulator_first_wins ()</h3>
+<pre class="programlisting"><a href="./../glib/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> g_signal_accumulator_first_wins (<em class="parameter"><code><a class="link" href="gobject-Signals.html#GSignalInvocationHint" title="struct GSignalInvocationHint"><span class="type">GSignalInvocationHint</span></a> *ihint</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Generic-values.html#GValue" title="GValue"><span class="type">GValue</span></a> *return_accu</code></em>,
+ <em class="parameter"><code>const <a class="link" href="gobject-Generic-values.html#GValue" title="GValue"><span class="type">GValue</span></a> *handler_return</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> dummy</code></em>);</pre>
+<p>
+A predefined <a class="link" href="gobject-Signals.html#GSignalAccumulator" title="GSignalAccumulator ()"><span class="type">GSignalAccumulator</span></a> for signals intended to be used as a
+hook for application code to provide a particular value. Usually
+only one such value is desired and multiple handlers for the same
+signal don't make much sense (except for the case of the default
+handler defined in the class structure, in which case you will
+usually want the signal connection to override the class handler).
+</p>
+<p>
+This accumulator will use the return value from the first signal
+handler that is run as the return value for the signal and not run
+any further handlers (ie: the first handler "wins").
+</p>
+<div class="variablelist"><table border="0">
+<col align="left" valign="top">
+<tbody>
+<tr>
+<td><p><span class="term"><em class="parameter"><code>ihint</code></em> :</span></p></td>
+<td>standard <a class="link" href="gobject-Signals.html#GSignalAccumulator" title="GSignalAccumulator ()"><span class="type">GSignalAccumulator</span></a> parameter</td>
+</tr>
+<tr>
+<td><p><span class="term"><em class="parameter"><code>return_accu</code></em> :</span></p></td>
+<td>standard <a class="link" href="gobject-Signals.html#GSignalAccumulator" title="GSignalAccumulator ()"><span class="type">GSignalAccumulator</span></a> parameter</td>
+</tr>
+<tr>
+<td><p><span class="term"><em class="parameter"><code>handler_return</code></em> :</span></p></td>
+<td>standard <a class="link" href="gobject-Signals.html#GSignalAccumulator" title="GSignalAccumulator ()"><span class="type">GSignalAccumulator</span></a> parameter</td>
+</tr>
+<tr>
+<td><p><span class="term"><em class="parameter"><code>dummy</code></em> :</span></p></td>
+<td>standard <a class="link" href="gobject-Signals.html#GSignalAccumulator" title="GSignalAccumulator ()"><span class="type">GSignalAccumulator</span></a> parameter</td>
+</tr>
+<tr>
+<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
+<td>standard <a class="link" href="gobject-Signals.html#GSignalAccumulator" title="GSignalAccumulator ()"><span class="type">GSignalAccumulator</span></a> result</td>
+</tr>
+</tbody>
+</table></div>
+<p class="since">Since 2.28</p>
+</div>
+<hr>
+<div class="refsect2">
<a name="g-signal-accumulator-true-handled"></a><h3>g_signal_accumulator_true_handled ()</h3>
-<pre class="programlisting"><a href="./../glib/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> g_signal_accumulator_true_handled (<a class="link" href="gobject-Signals.html#GSignalInvocationHint" title="GSignalInvocationHint"><span class="returnvalue">GSignalInvocationHint</span></a> *ihint,
- <a class="link" href="gobject-Generic-values.html#GValue" title="GValue"><span class="returnvalue">GValue</span></a> *return_accu,
- const <a class="link" href="gobject-Generic-values.html#GValue" title="GValue"><span class="returnvalue">GValue</span></a> *handler_return,
- <a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a> dummy);</pre>
+<pre class="programlisting"><a href="./../glib/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> g_signal_accumulator_true_handled (<em class="parameter"><code><a class="link" href="gobject-Signals.html#GSignalInvocationHint" title="struct GSignalInvocationHint"><span class="type">GSignalInvocationHint</span></a> *ihint</code></em>,
+ <em class="parameter"><code><a class="link" href="gobject-Generic-values.html#GValue" title="GValue"><span class="type">GValue</span></a> *return_accu</code></em>,
+ <em class="parameter"><code>const <a class="link" href="gobject-Generic-values.html#GValue" title="GValue"><span class="type">GValue</span></a> *handler_return</code></em>,
+ <em class="parameter"><code><a href="./../glib/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> dummy</code></em>);</pre>
<p>
A predefined <a class="link" href="gobject-Signals.html#GSignalAccumulator" title="GSignalAccumulator ()"><span class="type">GSignalAccumulator</span></a> for signals that return a
boolean values. The behavior that this accumulator gives is
that a return of <a href="./../glib/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> stops the signal emission: no further
callbacks will be invoked, while a return of <a href="./../glib/glib/glib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a> allows
-the emission to coninue. The idea here is that a <a href="./../glib/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> return
+the emission to con
tinue. The idea here is that a <a href="./../glib/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> return
indicates that the callback <span class="emphasis"><em>handled</em></span> the signal,
-and no further handling is needed.</p>
+and no further handling is needed.
+</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>ihint</code></em> :</span></p></td>
-<td> standard <a class="link" href="gobject-Signals.html#GSignalAccumulator" title="GSignalAccumulator ()"><span class="type">GSignalAccumulator</span></a> parameter
-</td>
+<td>standard <a class="link" href="gobject-Signals.html#GSignalAccumulator" title="GSignalAccumulator ()"><span class="type">GSignalAccumulator</span></a> parameter</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>return_accu</code></em> :</span></p></td>
-<td> standard <a class="link" href="gobject-Signals.html#GSignalAccumulator" title="GSignalAccumulator ()"><span class="type">GSignalAccumulator</span></a> parameter
-</td>
+<td>standard <a class="link" href="gobject-Signals.html#GSignalAccumulator" title="GSignalAccumulator ()"><span class="type">GSignalAccumulator</span></a> parameter</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>handler_return</code></em> :</span></p></td>
-<td> standard <a class="link" href="gobject-Signals.html#GSignalAccumulator" title="GSignalAccumulator ()"><span class="type">GSignalAccumulator</span></a> parameter
-</td>
+<td>standard <a class="link" href="gobject-Signals.html#GSignalAccumulator" title="GSignalAccumulator ()"><span class="type">GSignalAccumulator</span></a> parameter</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>dummy</code></em> :</span></p></td>
-<td> standard <a class="link" href="gobject-Signals.html#GSignalAccumulator" title="GSignalAccumulator ()"><span class="type">GSignalAccumulator</span></a> parameter
-</td>
+<td>standard <a class="link" href="gobject-Signals.html#GSignalAccumulator" title="GSignalAccumulator ()"><span class="type">GSignalAccumulator</span></a> parameter</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
-<td> standard <a class="link" href="gobject-Signals.html#GSignalAccumulator" title="GSignalAccumulator ()"><span class="type">GSignalAccumulator</span></a> result
-</td>
+<td>standard <a class="link" href="gobject-Signals.html#GSignalAccumulator" title="GSignalAccumulator ()"><span class="type">GSignalAccumulator</span></a> result</td>
</tr>
</tbody>
</table></div>
</div>
<div class="footnotes">
<br><hr width="100" align="left">
-<div class="footnote"><p><sup>[<a name="ftn.id667902" href="#id667902" class="para">10</a>] </sup>Although signals can deal with any kind of instantiatable
+<div class="footnote"><p><sup>[<a id="ftn.id670905" href="#id670905" class="para">10</a>] </sup>Although signals can deal with any kind of instantiatable
type, i'm referring to those types as "object types" in the following,
simply because that is the context most users will encounter signals in.
</p></div>
</div>
<div class="footer">
<hr>
- Generated by GTK-Doc V1.13</div>
+ Generated by GTK-Doc V1.18</div>
</body>
</html>
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projects / platform / upstream / glib2.0.git / blobdiff