examples: gtk: Fix MSVC build

gtk-play.c(370): error C2375: 'rewind_button_clicked_cb': redefinition;
different linkage

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2871>

diff --git a/subprojects/gst-examples/playback/player/gtk/gtk-play.c b/subprojects/gst-examples/playback/player/gtk/gtk-play.c
index 985786f..fb83f6b 100644 (file)
--- a/subprojects/gst-examples/playback/player/gtk/gtk-play.c
+++ b/subprojects/gst-examples/playback/player/gtk/gtk-play.c
@@ -97,16 +97,27 @@ typedef GtkApplicationWindowClass GtkPlayClass;
 GType gtk_play_get_type (void);
 G_DEFINE_TYPE (GtkPlay, gtk_play, GTK_TYPE_APPLICATION_WINDOW);
 
+/* *INDENT-OFF* */
+G_MODULE_EXPORT
 void rewind_button_clicked_cb (GtkButton * button, GtkPlay * play);
+G_MODULE_EXPORT
 void forward_button_clicked_cb (GtkButton * button, GtkPlay * play);
+G_MODULE_EXPORT
 void play_pause_button_clicked_cb (GtkButton * button, GtkPlay * play);
+G_MODULE_EXPORT
 void prev_button_clicked_cb (GtkButton * button, GtkPlay * play);
+G_MODULE_EXPORT
 void next_button_clicked_cb (GtkButton * button, GtkPlay * play);
+G_MODULE_EXPORT
 void media_info_dialog_button_clicked_cb (GtkButton * button, GtkPlay * play);
+G_MODULE_EXPORT
 void fullscreen_button_toggled_cb (GtkToggleButton * widget, GtkPlay * play);
+G_MODULE_EXPORT
 void seekbar_value_changed_cb (GtkRange * range, GtkPlay * play);
+G_MODULE_EXPORT
 void volume_button_value_changed_cb (GtkScaleButton * button, gdouble value,
     GtkPlay * play);
+/* *INDENT-ON* */
 
 enum
 {