docs/reference/gobject/html/GTypePlugin.html

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  24 <a href="#GTypePlugin.synopsis" class="shortcut">Top</a>
  25                    |
  26                   <a href="#GTypePlugin.description" class="shortcut">Description</a>
  27                    |
  28                   <a href="#GTypePlugin.object-hierarchy" class="shortcut">Object Hierarchy</a>
  29                    |
  30                   <a href="#GTypePlugin.implementations" class="shortcut">Known Implementations</a>
  31 </td></tr>
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  33 <div class="refentry">
  34 <a name="GTypePlugin"></a><div class="titlepage"></div>
  35 <div class="refnamediv"><table width="100%"><tr>
  36 <td valign="top">
  37 <h2><span class="refentrytitle"><a name="GTypePlugin.top_of_page"></a>GTypePlugin</span></h2>
  38 <p>GTypePlugin — An interface for dynamically loadable types</p>
  39 </td>
  40 <td valign="top" align="right"></td>
  41 </tr></table></div>
  42 <div class="refsynopsisdiv">
  43 <a name="GTypePlugin.synopsis"></a><h2>Synopsis</h2>
  44 <pre class="synopsis">
  45 #include &lt;glib-object.h&gt;
  46
  47                     <a class="link" href="GTypePlugin.html#GTypePlugin-struct" title="GTypePlugin">GTypePlugin</a>;
  48 struct              <a class="link" href="GTypePlugin.html#GTypePluginClass" title="struct GTypePluginClass">GTypePluginClass</a>;
  49 <span class="returnvalue">void</span>                (<a class="link" href="GTypePlugin.html#GTypePluginUse" title="GTypePluginUse ()">*GTypePluginUse</a>)                   (<em class="parameter"><code><a class="link" href="GTypePlugin.html" title="GTypePlugin"><span class="type">GTypePlugin</span></a> *plugin</code></em>);
  50 <span class="returnvalue">void</span>                (<a class="link" href="GTypePlugin.html#GTypePluginUnuse" title="GTypePluginUnuse ()">*GTypePluginUnuse</a>)                 (<em class="parameter"><code><a class="link" href="GTypePlugin.html" title="GTypePlugin"><span class="type">GTypePlugin</span></a> *plugin</code></em>);
  51 <span class="returnvalue">void</span>                (<a class="link" href="GTypePlugin.html#GTypePluginCompleteTypeInfo" title="GTypePluginCompleteTypeInfo ()">*GTypePluginCompleteTypeInfo</a>)      (<em class="parameter"><code><a class="link" href="GTypePlugin.html" title="GTypePlugin"><span class="type">GTypePlugin</span></a> *plugin</code></em>,
  52                                                          <em class="parameter"><code><a class="link" href="gobject-Type-Information.html#GType" title="GType"><span class="type">GType</span></a> g_type</code></em>,
  53                                                          <em class="parameter"><code><a class="link" href="gobject-Type-Information.html#GTypeInfo" title="struct GTypeInfo"><span class="type">GTypeInfo</span></a> *info</code></em>,
  54                                                          <em class="parameter"><code><a class="link" href="gobject-Type-Information.html#GTypeValueTable" title="struct GTypeValueTable"><span class="type">GTypeValueTable</span></a> *value_table</code></em>);
  55 <span class="returnvalue">void</span>                (<a class="link" href="GTypePlugin.html#GTypePluginCompleteInterfaceInfo" title="GTypePluginCompleteInterfaceInfo ()">*GTypePluginCompleteInterfaceInfo</a>) (<em class="parameter"><code><a class="link" href="GTypePlugin.html" title="GTypePlugin"><span class="type">GTypePlugin</span></a> *plugin</code></em>,
  56                                                          <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>,
  57                                                          <em class="parameter"><code><a class="link" href="gobject-Type-Information.html#GType" title="GType"><span class="type">GType</span></a> interface_type</code></em>,
  58                                                          <em class="parameter"><code><a class="link" href="gobject-Type-Information.html#GInterfaceInfo" title="struct GInterfaceInfo"><span class="type">GInterfaceInfo</span></a> *info</code></em>);
  59 <span class="returnvalue">void</span>                <a class="link" href="GTypePlugin.html#g-type-plugin-use" title="g_type_plugin_use ()">g_type_plugin_use</a>                   (<em class="parameter"><code><a class="link" href="GTypePlugin.html" title="GTypePlugin"><span class="type">GTypePlugin</span></a> *plugin</code></em>);
  60 <span class="returnvalue">void</span>                <a class="link" href="GTypePlugin.html#g-type-plugin-unuse" title="g_type_plugin_unuse ()">g_type_plugin_unuse</a>                 (<em class="parameter"><code><a class="link" href="GTypePlugin.html" title="GTypePlugin"><span class="type">GTypePlugin</span></a> *plugin</code></em>);
  61 <span class="returnvalue">void</span>                <a class="link" href="GTypePlugin.html#g-type-plugin-complete-type-info" title="g_type_plugin_complete_type_info ()">g_type_plugin_complete_type_info</a>    (<em class="parameter"><code><a class="link" href="GTypePlugin.html" title="GTypePlugin"><span class="type">GTypePlugin</span></a> *plugin</code></em>,
  62                                                          <em class="parameter"><code><a class="link" href="gobject-Type-Information.html#GType" title="GType"><span class="type">GType</span></a> g_type</code></em>,
  63                                                          <em class="parameter"><code><a class="link" href="gobject-Type-Information.html#GTypeInfo" title="struct GTypeInfo"><span class="type">GTypeInfo</span></a> *info</code></em>,
  64                                                          <em class="parameter"><code><a class="link" href="gobject-Type-Information.html#GTypeValueTable" title="struct GTypeValueTable"><span class="type">GTypeValueTable</span></a> *value_table</code></em>);
  65 <span class="returnvalue">void</span>                <a class="link" href="GTypePlugin.html#g-type-plugin-complete-interface-info" title="g_type_plugin_complete_interface_info ()">g_type_plugin_complete_interface_info</a>
  66                                                         (<em class="parameter"><code><a class="link" href="GTypePlugin.html" title="GTypePlugin"><span class="type">GTypePlugin</span></a> *plugin</code></em>,
  67                                                          <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>,
  68                                                          <em class="parameter"><code><a class="link" href="gobject-Type-Information.html#GType" title="GType"><span class="type">GType</span></a> interface_type</code></em>,
  69                                                          <em class="parameter"><code><a class="link" href="gobject-Type-Information.html#GInterfaceInfo" title="struct GInterfaceInfo"><span class="type">GInterfaceInfo</span></a> *info</code></em>);
  70 </pre>
  71 </div>
  72 <div class="refsect1">
  73 <a name="GTypePlugin.object-hierarchy"></a><h2>Object Hierarchy</h2>
  74 <pre class="synopsis">
  75   GInterface
  76    +----GTypePlugin
  77 </pre>
  78 </div>
  79 <div class="refsect1">
  80 <a name="GTypePlugin.implementations"></a><h2>Known Implementations</h2>
  81 <p>
  82 GTypePlugin is implemented by
  83  <a class="link" href="GTypeModule.html" title="GTypeModule">GTypeModule</a>.</p>
  84 </div>
  85 <div class="refsect1">
  86 <a name="GTypePlugin.description"></a><h2>Description</h2>
  87 <p>
  88 The GObject type system supports dynamic loading of types. The
  89 <a class="link" href="GTypePlugin.html" title="GTypePlugin"><span class="type">GTypePlugin</span></a> interface is used to handle the lifecycle of
  90 dynamically loaded types.  It goes as follows:
  91 </p>
  92 <p>
  93 </p>
  94 <div class="orderedlist"><ol class="orderedlist" type="1">
  95 <li class="listitem">
  96 <p>
  97   The type is initially introduced (usually upon loading the module
  98   the first time, or by your main application that knows what modules
  99   introduces what types), like this:
 100   </p>
 101 <div class="informalexample">
 102   <table class="listing_frame" border="0" cellpadding="0" cellspacing="0">
 103     <tbody>
 104       <tr>
 105         <td class="listing_lines" align="right"><pre>1
 106 2
 107 3
 108 4</pre></td>
 109         <td class="listing_code"><pre class="programlisting"><span class="normal">new_type_id </span><span class="symbol">=</span><span class="normal"> </span><span class="function"><a href="gobject-Type-Information.html#g-type-register-dynamic">g_type_register_dynamic</a></span><span class="normal"> </span><span class="symbol">(</span><span class="normal">parent_type_id</span><span class="symbol">,</span>
 110 <span class="normal">                                              </span><span class="string">"TypeName"</span><span class="symbol">,</span>
 111 <span class="normal">                                              new_type_plugin</span><span class="symbol">,</span>
 112 <span class="normal">                                              type_flags</span><span class="symbol">);</span></pre></td>
 113       </tr>
 114     </tbody>
 115   </table>
 116 </div>
 117
 118 <p>
 119   where <code class="literal">new_type_plugin</code> is an implementation of the
 120   <a class="link" href="GTypePlugin.html" title="GTypePlugin"><span class="type">GTypePlugin</span></a> interface.
 121 </p>
 122 </li>
 123 <li class="listitem"><p>
 124    The type's implementation is referenced, e.g. through
 125    <a class="link" href="gobject-Type-Information.html#g-type-class-ref" title="g_type_class_ref ()"><code class="function">g_type_class_ref()</code></a> or through <a class="link" href="gobject-Type-Information.html#g-type-create-instance" title="g_type_create_instance ()"><code class="function">g_type_create_instance()</code></a> (this is
 126    being called by <a class="link" href="gobject-The-Base-Object-Type.html#g-object-new" title="g_object_new ()"><code class="function">g_object_new()</code></a>) or through one of the above done on
 127    a type derived from <code class="literal">new_type_id</code>.
 128 </p></li>
 129 <li class="listitem"><p>
 130    This causes the type system to load the type's implementation by calling
 131    <a class="link" href="GTypePlugin.html#g-type-plugin-use" title="g_type_plugin_use ()"><code class="function">g_type_plugin_use()</code></a> and <a class="link" href="GTypePlugin.html#g-type-plugin-complete-type-info" title="g_type_plugin_complete_type_info ()"><code class="function">g_type_plugin_complete_type_info()</code></a> on
 132    <code class="literal">new_type_plugin</code>.
 133 </p></li>
 134 <li class="listitem"><p>
 135    At some point the type's implementation isn't required anymore, e.g. after
 136    <a class="link" href="gobject-Type-Information.html#g-type-class-unref" title="g_type_class_unref ()"><code class="function">g_type_class_unref()</code></a> or <a class="link" href="gobject-Type-Information.html#g-type-free-instance" title="g_type_free_instance ()"><code class="function">g_type_free_instance()</code></a> (called when the reference
 137    count of an instance drops to zero).
 138 </p></li>
 139 <li class="listitem"><p>
 140    This causes the type system to throw away the information retrieved from
 141    <a class="link" href="GTypePlugin.html#g-type-plugin-complete-type-info" title="g_type_plugin_complete_type_info ()"><code class="function">g_type_plugin_complete_type_info()</code></a> and then it calls
 142    <a class="link" href="GTypePlugin.html#g-type-plugin-unuse" title="g_type_plugin_unuse ()"><code class="function">g_type_plugin_unuse()</code></a> on <code class="literal">new_type_plugin</code>.
 143 </p></li>
 144 <li class="listitem"><p>
 145    Things may repeat from the second step.
 146 </p></li>
 147 </ol></div>
 148 <p>
 149 </p>
 150 <p>
 151 So basically, you need to implement a <a class="link" href="GTypePlugin.html" title="GTypePlugin"><span class="type">GTypePlugin</span></a> type that
 152 carries a use_count, once use_count goes from zero to one, you need
 153 to load the implementation to successfully handle the upcoming
 154 <a class="link" href="GTypePlugin.html#g-type-plugin-complete-type-info" title="g_type_plugin_complete_type_info ()"><code class="function">g_type_plugin_complete_type_info()</code></a> call. Later, maybe after
 155 succeeding use/unuse calls, once use_count drops to zero, you can
 156 unload the implementation again. The type system makes sure to call
 157 <a class="link" href="GTypePlugin.html#g-type-plugin-use" title="g_type_plugin_use ()"><code class="function">g_type_plugin_use()</code></a> and <a class="link" href="GTypePlugin.html#g-type-plugin-complete-type-info" title="g_type_plugin_complete_type_info ()"><code class="function">g_type_plugin_complete_type_info()</code></a> again
 158 when the type is needed again.
 159 </p>
 160 <p>
 161 <a class="link" href="GTypeModule.html" title="GTypeModule"><span class="type">GTypeModule</span></a> is an implementation of <a class="link" href="GTypePlugin.html" title="GTypePlugin"><span class="type">GTypePlugin</span></a> that already
 162 implements most of this except for the actual module loading and
 163 unloading. It even handles multiple registered types per module.
 164 </p>
 165 </div>
 166 <div class="refsect1">
 167 <a name="GTypePlugin.details"></a><h2>Details</h2>
 168 <div class="refsect2">
 169 <a name="GTypePlugin-struct"></a><h3>GTypePlugin</h3>
 170 <pre class="programlisting">typedef struct _GTypePlugin GTypePlugin;</pre>
 171 <p>
 172 The <span class="structname">GTypePlugin</span> typedef is used as a placeholder
 173 for objects that implement the <span class="structname">GTypePlugin</span>
 174 interface.
 175 </p>
 176 </div>
 177 <hr>
 178 <div class="refsect2">
 179 <a name="GTypePluginClass"></a><h3>struct GTypePluginClass</h3>
 180 <pre class="programlisting">struct GTypePluginClass {
 181   GTypePluginUse                   use_plugin;
 182   GTypePluginUnuse                 unuse_plugin;
 183   GTypePluginCompleteTypeInfo      complete_type_info;
 184   GTypePluginCompleteInterfaceInfo complete_interface_info;
 185 };
 186 </pre>
 187 <p>
 188 The <a class="link" href="GTypePlugin.html" title="GTypePlugin"><span class="type">GTypePlugin</span></a> interface is used by the type system in order to handle
 189 the lifecycle of dynamically loaded types.
 190 </p>
 191 <div class="variablelist"><table border="0">
 192 <col align="left" valign="top">
 193 <tbody>
 194 <tr>
 195 <td><p><span class="term"><a class="link" href="GTypePlugin.html#GTypePluginUse" title="GTypePluginUse ()"><span class="type">GTypePluginUse</span></a> <em class="structfield"><code><a name="GTypePluginClass.use-plugin"></a>use_plugin</code></em>;</span></p></td>
 196 <td>Increases the use count of the plugin.</td>
 197 </tr>
 198 <tr>
 199 <td><p><span class="term"><a class="link" href="GTypePlugin.html#GTypePluginUnuse" title="GTypePluginUnuse ()"><span class="type">GTypePluginUnuse</span></a> <em class="structfield"><code><a name="GTypePluginClass.unuse-plugin"></a>unuse_plugin</code></em>;</span></p></td>
 200 <td>Decreases the use count of the plugin.</td>
 201 </tr>
 202 <tr>
 203 <td><p><span class="term"><a class="link" href="GTypePlugin.html#GTypePluginCompleteTypeInfo" title="GTypePluginCompleteTypeInfo ()"><span class="type">GTypePluginCompleteTypeInfo</span></a> <em class="structfield"><code><a name="GTypePluginClass.complete-type-info"></a>complete_type_info</code></em>;</span></p></td>
 204 <td>Fills in the <a class="link" href="gobject-Type-Information.html#GTypeInfo" title="struct GTypeInfo"><span class="type">GTypeInfo</span></a> and
 205 <a class="link" href="gobject-Type-Information.html#GTypeValueTable" title="struct GTypeValueTable"><span class="type">GTypeValueTable</span></a> structs for the type. The structs are initialized
 206 with <code class="literal">memset(s, 0, sizeof (s))</code> before calling
 207 this function.</td>
 208 </tr>
 209 <tr>
 210 <td><p><span class="term"><a class="link" href="GTypePlugin.html#GTypePluginCompleteInterfaceInfo" title="GTypePluginCompleteInterfaceInfo ()"><span class="type">GTypePluginCompleteInterfaceInfo</span></a> <em class="structfield"><code><a name="GTypePluginClass.complete-interface-info"></a>complete_interface_info</code></em>;</span></p></td>
 211 <td>Fills in missing parts of the <a class="link" href="gobject-Type-Information.html#GInterfaceInfo" title="struct GInterfaceInfo"><span class="type">GInterfaceInfo</span></a>
 212 for the interface. The structs is initialized with
 213 <code class="literal">memset(s, 0, sizeof (s))</code> before calling
 214 this function.</td>
 215 </tr>
 216 </tbody>
 217 </table></div>
 218 </div>
 219 <hr>
 220 <div class="refsect2">
 221 <a name="GTypePluginUse"></a><h3>GTypePluginUse ()</h3>
 222 <pre class="programlisting"><span class="returnvalue">void</span>                (*GTypePluginUse)                   (<em class="parameter"><code><a class="link" href="GTypePlugin.html" title="GTypePlugin"><span class="type">GTypePlugin</span></a> *plugin</code></em>);</pre>
 223 <p>
 224 The type of the <em class="parameter"><code>use_plugin</code></em> function of <a class="link" href="GTypePlugin.html#GTypePluginClass" title="struct GTypePluginClass"><span class="type">GTypePluginClass</span></a>, which gets called
 225 to increase the use count of <em class="parameter"><code>plugin</code></em>.
 226 </p>
 227 <div class="variablelist"><table border="0">
 228 <col align="left" valign="top">
 229 <tbody><tr>
 230 <td><p><span class="term"><em class="parameter"><code>plugin</code></em> :</span></p></td>
 231 <td>the <a class="link" href="GTypePlugin.html" title="GTypePlugin"><span class="type">GTypePlugin</span></a> whose use count should be increased</td>
 232 </tr></tbody>
 233 </table></div>
 234 </div>
 235 <hr>
 236 <div class="refsect2">
 237 <a name="GTypePluginUnuse"></a><h3>GTypePluginUnuse ()</h3>
 238 <pre class="programlisting"><span class="returnvalue">void</span>                (*GTypePluginUnuse)                 (<em class="parameter"><code><a class="link" href="GTypePlugin.html" title="GTypePlugin"><span class="type">GTypePlugin</span></a> *plugin</code></em>);</pre>
 239 <p>
 240 The type of the <em class="parameter"><code>unuse_plugin</code></em> function of <a class="link" href="GTypePlugin.html#GTypePluginClass" title="struct GTypePluginClass"><span class="type">GTypePluginClass</span></a>.
 241 </p>
 242 <div class="variablelist"><table border="0">
 243 <col align="left" valign="top">
 244 <tbody><tr>
 245 <td><p><span class="term"><em class="parameter"><code>plugin</code></em> :</span></p></td>
 246 <td>the <a class="link" href="GTypePlugin.html" title="GTypePlugin"><span class="type">GTypePlugin</span></a> whose use count should be decreased</td>
 247 </tr></tbody>
 248 </table></div>
 249 </div>
 250 <hr>
 251 <div class="refsect2">
 252 <a name="GTypePluginCompleteTypeInfo"></a><h3>GTypePluginCompleteTypeInfo ()</h3>
 253 <pre class="programlisting"><span class="returnvalue">void</span>                (*GTypePluginCompleteTypeInfo)      (<em class="parameter"><code><a class="link" href="GTypePlugin.html" title="GTypePlugin"><span class="type">GTypePlugin</span></a> *plugin</code></em>,
 254                                                          <em class="parameter"><code><a class="link" href="gobject-Type-Information.html#GType" title="GType"><span class="type">GType</span></a> g_type</code></em>,
 255                                                          <em class="parameter"><code><a class="link" href="gobject-Type-Information.html#GTypeInfo" title="struct GTypeInfo"><span class="type">GTypeInfo</span></a> *info</code></em>,
 256                                                          <em class="parameter"><code><a class="link" href="gobject-Type-Information.html#GTypeValueTable" title="struct GTypeValueTable"><span class="type">GTypeValueTable</span></a> *value_table</code></em>);</pre>
 257 <p>
 258 The type of the <em class="parameter"><code>complete_type_info</code></em> function of <a class="link" href="GTypePlugin.html#GTypePluginClass" title="struct GTypePluginClass"><span class="type">GTypePluginClass</span></a>.
 259 </p>
 260 <div class="variablelist"><table border="0">
 261 <col align="left" valign="top">
 262 <tbody>
 263 <tr>
 264 <td><p><span class="term"><em class="parameter"><code>plugin</code></em> :</span></p></td>
 265 <td>the <a class="link" href="GTypePlugin.html" title="GTypePlugin"><span class="type">GTypePlugin</span></a>
 266 </td>
 267 </tr>
 268 <tr>
 269 <td><p><span class="term"><em class="parameter"><code>g_type</code></em> :</span></p></td>
 270 <td>the <a class="link" href="gobject-Type-Information.html#GType" title="GType"><span class="type">GType</span></a> whose info is completed</td>
 271 </tr>
 272 <tr>
 273 <td><p><span class="term"><em class="parameter"><code>info</code></em> :</span></p></td>
 274 <td>the <a class="link" href="gobject-Type-Information.html#GTypeInfo" title="struct GTypeInfo"><span class="type">GTypeInfo</span></a> struct to fill in</td>
 275 </tr>
 276 <tr>
 277 <td><p><span class="term"><em class="parameter"><code>value_table</code></em> :</span></p></td>
 278 <td>the <a class="link" href="gobject-Type-Information.html#GTypeValueTable" title="struct GTypeValueTable"><span class="type">GTypeValueTable</span></a> to fill in</td>
 279 </tr>
 280 </tbody>
 281 </table></div>
 282 </div>
 283 <hr>
 284 <div class="refsect2">
 285 <a name="GTypePluginCompleteInterfaceInfo"></a><h3>GTypePluginCompleteInterfaceInfo ()</h3>
 286 <pre class="programlisting"><span class="returnvalue">void</span>                (*GTypePluginCompleteInterfaceInfo) (<em class="parameter"><code><a class="link" href="GTypePlugin.html" title="GTypePlugin"><span class="type">GTypePlugin</span></a> *plugin</code></em>,
 287                                                          <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>,
 288                                                          <em class="parameter"><code><a class="link" href="gobject-Type-Information.html#GType" title="GType"><span class="type">GType</span></a> interface_type</code></em>,
 289                                                          <em class="parameter"><code><a class="link" href="gobject-Type-Information.html#GInterfaceInfo" title="struct GInterfaceInfo"><span class="type">GInterfaceInfo</span></a> *info</code></em>);</pre>
 290 <p>
 291 The type of the <em class="parameter"><code>complete_interface_info</code></em> function of <a class="link" href="GTypePlugin.html#GTypePluginClass" title="struct GTypePluginClass"><span class="type">GTypePluginClass</span></a>.
 292 </p>
 293 <div class="variablelist"><table border="0">
 294 <col align="left" valign="top">
 295 <tbody>
 296 <tr>
 297 <td><p><span class="term"><em class="parameter"><code>plugin</code></em> :</span></p></td>
 298 <td>the <a class="link" href="GTypePlugin.html" title="GTypePlugin"><span class="type">GTypePlugin</span></a>
 299 </td>
 300 </tr>
 301 <tr>
 302 <td><p><span class="term"><em class="parameter"><code>instance_type</code></em> :</span></p></td>
 303 <td>the <a class="link" href="gobject-Type-Information.html#GType" title="GType"><span class="type">GType</span></a> of an instantiable type to which the interface
 304 is added</td>
 305 </tr>
 306 <tr>
 307 <td><p><span class="term"><em class="parameter"><code>interface_type</code></em> :</span></p></td>
 308 <td>the <a class="link" href="gobject-Type-Information.html#GType" title="GType"><span class="type">GType</span></a> of the interface whose info is completed</td>
 309 </tr>
 310 <tr>
 311 <td><p><span class="term"><em class="parameter"><code>info</code></em> :</span></p></td>
 312 <td>the <a class="link" href="gobject-Type-Information.html#GInterfaceInfo" title="struct GInterfaceInfo"><span class="type">GInterfaceInfo</span></a> to fill in</td>
 313 </tr>
 314 </tbody>
 315 </table></div>
 316 </div>
 317 <hr>
 318 <div class="refsect2">
 319 <a name="g-type-plugin-use"></a><h3>g_type_plugin_use ()</h3>
 320 <pre class="programlisting"><span class="returnvalue">void</span>                g_type_plugin_use                   (<em class="parameter"><code><a class="link" href="GTypePlugin.html" title="GTypePlugin"><span class="type">GTypePlugin</span></a> *plugin</code></em>);</pre>
 321 <p>
 322 Calls the <em class="parameter"><code>use_plugin</code></em> function from the <a class="link" href="GTypePlugin.html#GTypePluginClass" title="struct GTypePluginClass"><span class="type">GTypePluginClass</span></a> of
 323 <em class="parameter"><code>plugin</code></em>.  There should be no need to use this function outside of
 324 the GObject type system itself.
 325 </p>
 326 <div class="variablelist"><table border="0">
 327 <col align="left" valign="top">
 328 <tbody><tr>
 329 <td><p><span class="term"><em class="parameter"><code>plugin</code></em> :</span></p></td>
 330 <td>a <a class="link" href="GTypePlugin.html" title="GTypePlugin"><span class="type">GTypePlugin</span></a>
 331 </td>
 332 </tr></tbody>
 333 </table></div>
 334 </div>
 335 <hr>
 336 <div class="refsect2">
 337 <a name="g-type-plugin-unuse"></a><h3>g_type_plugin_unuse ()</h3>
 338 <pre class="programlisting"><span class="returnvalue">void</span>                g_type_plugin_unuse                 (<em class="parameter"><code><a class="link" href="GTypePlugin.html" title="GTypePlugin"><span class="type">GTypePlugin</span></a> *plugin</code></em>);</pre>
 339 <p>
 340 Calls the <em class="parameter"><code>unuse_plugin</code></em> function from the <a class="link" href="GTypePlugin.html#GTypePluginClass" title="struct GTypePluginClass"><span class="type">GTypePluginClass</span></a> of
 341 <em class="parameter"><code>plugin</code></em>.  There should be no need to use this function outside of
 342 the GObject type system itself.
 343 </p>
 344 <div class="variablelist"><table border="0">
 345 <col align="left" valign="top">
 346 <tbody><tr>
 347 <td><p><span class="term"><em class="parameter"><code>plugin</code></em> :</span></p></td>
 348 <td>a <a class="link" href="GTypePlugin.html" title="GTypePlugin"><span class="type">GTypePlugin</span></a>
 349 </td>
 350 </tr></tbody>
 351 </table></div>
 352 </div>
 353 <hr>
 354 <div class="refsect2">
 355 <a name="g-type-plugin-complete-type-info"></a><h3>g_type_plugin_complete_type_info ()</h3>
 356 <pre class="programlisting"><span class="returnvalue">void</span>                g_type_plugin_complete_type_info    (<em class="parameter"><code><a class="link" href="GTypePlugin.html" title="GTypePlugin"><span class="type">GTypePlugin</span></a> *plugin</code></em>,
 357                                                          <em class="parameter"><code><a class="link" href="gobject-Type-Information.html#GType" title="GType"><span class="type">GType</span></a> g_type</code></em>,
 358                                                          <em class="parameter"><code><a class="link" href="gobject-Type-Information.html#GTypeInfo" title="struct GTypeInfo"><span class="type">GTypeInfo</span></a> *info</code></em>,
 359                                                          <em class="parameter"><code><a class="link" href="gobject-Type-Information.html#GTypeValueTable" title="struct GTypeValueTable"><span class="type">GTypeValueTable</span></a> *value_table</code></em>);</pre>
 360 <p>
 361 Calls the <em class="parameter"><code>complete_type_info</code></em> function from the <a class="link" href="GTypePlugin.html#GTypePluginClass" title="struct GTypePluginClass"><span class="type">GTypePluginClass</span></a> of <em class="parameter"><code>plugin</code></em>.
 362 There should be no need to use this function outside of the GObject
 363 type system itself.
 364 </p>
 365 <div class="variablelist"><table border="0">
 366 <col align="left" valign="top">
 367 <tbody>
 368 <tr>
 369 <td><p><span class="term"><em class="parameter"><code>plugin</code></em> :</span></p></td>
 370 <td>a <a class="link" href="GTypePlugin.html" title="GTypePlugin"><span class="type">GTypePlugin</span></a>
 371 </td>
 372 </tr>
 373 <tr>
 374 <td><p><span class="term"><em class="parameter"><code>g_type</code></em> :</span></p></td>
 375 <td>the <a class="link" href="gobject-Type-Information.html#GType" title="GType"><span class="type">GType</span></a> whose info is completed</td>
 376 </tr>
 377 <tr>
 378 <td><p><span class="term"><em class="parameter"><code>info</code></em> :</span></p></td>
 379 <td>the <a class="link" href="gobject-Type-Information.html#GTypeInfo" title="struct GTypeInfo"><span class="type">GTypeInfo</span></a> struct to fill in</td>
 380 </tr>
 381 <tr>
 382 <td><p><span class="term"><em class="parameter"><code>value_table</code></em> :</span></p></td>
 383 <td>the <a class="link" href="gobject-Type-Information.html#GTypeValueTable" title="struct GTypeValueTable"><span class="type">GTypeValueTable</span></a> to fill in</td>
 384 </tr>
 385 </tbody>
 386 </table></div>
 387 </div>
 388 <hr>
 389 <div class="refsect2">
 390 <a name="g-type-plugin-complete-interface-info"></a><h3>g_type_plugin_complete_interface_info ()</h3>
 391 <pre class="programlisting"><span class="returnvalue">void</span>                g_type_plugin_complete_interface_info
 392                                                         (<em class="parameter"><code><a class="link" href="GTypePlugin.html" title="GTypePlugin"><span class="type">GTypePlugin</span></a> *plugin</code></em>,
 393                                                          <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>,
 394                                                          <em class="parameter"><code><a class="link" href="gobject-Type-Information.html#GType" title="GType"><span class="type">GType</span></a> interface_type</code></em>,
 395                                                          <em class="parameter"><code><a class="link" href="gobject-Type-Information.html#GInterfaceInfo" title="struct GInterfaceInfo"><span class="type">GInterfaceInfo</span></a> *info</code></em>);</pre>
 396 <p>
 397 Calls the <em class="parameter"><code>complete_interface_info</code></em> function from the
 398 <a class="link" href="GTypePlugin.html#GTypePluginClass" title="struct GTypePluginClass"><span class="type">GTypePluginClass</span></a> of <em class="parameter"><code>plugin</code></em>. There should be no need to use this
 399 function outside of the GObject type system itself.
 400 </p>
 401 <div class="variablelist"><table border="0">
 402 <col align="left" valign="top">
 403 <tbody>
 404 <tr>
 405 <td><p><span class="term"><em class="parameter"><code>plugin</code></em> :</span></p></td>
 406 <td>the <a class="link" href="GTypePlugin.html" title="GTypePlugin"><span class="type">GTypePlugin</span></a>
 407 </td>
 408 </tr>
 409 <tr>
 410 <td><p><span class="term"><em class="parameter"><code>instance_type</code></em> :</span></p></td>
 411 <td>the <a class="link" href="gobject-Type-Information.html#GType" title="GType"><span class="type">GType</span></a> of an instantiable type to which the interface
 412 is added</td>
 413 </tr>
 414 <tr>
 415 <td><p><span class="term"><em class="parameter"><code>interface_type</code></em> :</span></p></td>
 416 <td>the <a class="link" href="gobject-Type-Information.html#GType" title="GType"><span class="type">GType</span></a> of the interface whose info is completed</td>
 417 </tr>
 418 <tr>
 419 <td><p><span class="term"><em class="parameter"><code>info</code></em> :</span></p></td>
 420 <td>the <a class="link" href="gobject-Type-Information.html#GInterfaceInfo" title="struct GInterfaceInfo"><span class="type">GInterfaceInfo</span></a> to fill in</td>
 421 </tr>
 422 </tbody>
 423 </table></div>
 424 </div>
 425 </div>
 426 <div class="refsect1">
 427 <a name="GTypePlugin.see-also"></a><h2>See Also</h2>
 428 <a class="link" href="GTypeModule.html" title="GTypeModule"><span class="type">GTypeModule</span></a> and <a class="link" href="gobject-Type-Information.html#g-type-register-dynamic" title="g_type_register_dynamic ()"><code class="function">g_type_register_dynamic()</code></a>.
 429 </div>
 430 </div>
 431 <div class="footer">
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