[Glade-users] libglade, GtkDrawingArea, GdkEvents ?

[e98cuenc@free.fr]

In addition of adding the callback in glade, you should also connect to the 
callback on your code using glade_xml_signal_connect, or connect at the same 
time all the callbacks using glade_xml_signal_autoconnect (if you want to use 
autoconnect, you should export the symbols of your executable.  Using the -
export-dynamic option of libtool should do the trick in a portable way).

Cheers,

Selon goth goth <oogothoo@yahoo.fr>:

> Hello,
> 
> I realise a simple application using libglade 2, Gtk
> 2.2 : a GtkDrawingArea in a GtkWindow.
> 
> window : signal destroy connect to gtk_main_quit
> drawingarea : signals button_release_event and
> motion_notify_event on two function who g_print event.
> 
> drawingarea use the string "00000000001000000100" to
> the GdkEvent (activate GDK_MOTION_NOTIFY_MASK and
> GDK_BUTTON_RELEASE_MASK).
> 
> Events are not send : no error message but no action
> What is the problem ?
> 
> This is the code :
> 
> ----------------------------------
> 
> #include <gtk/gtk.h>
> #include <glade/glade.h>
> 
> gboolean
> on_drawingarea_motion_notify_event(GtkWidget *widget,
> 				   GdkEventMotion *event)
> {
> 	g_print("%f %f.\n", event->x, event->y);
> 	return TRUE;
> }
> 
> 
> 
> gboolean
> on_drawingarea_button_release_event(GtkWidget *widget,
> 				    GdkEventButton *event)
> {
> 	g_print("bouton = %d.\n", event->button);
> 	return TRUE;
> }
> 
> 
> int
> main(int argc, char **argv)
> {
> 	GladeXML *xml;
> 
> 	gtk_init(&argc, &argv);
> 	glade_init();
> 	
> 	xml = glade_xml_new("test.glade", NULL, NULL);
> 
> 	if(!xml)
> 	{
> 		g_warning("error loading gtk.glade");
> 		return 1;
> 	} else {
> 		glade_xml_signal_autoconnect(xml);
> 		gtk_main();
> 		return 0;
> 	}
> }
> 
> -------------------------------
> 
> This is the test.glade :
> 
> <?xml version="1.0" standalone="no"?> <!--*- mode: xml
> -*-->
> <!DOCTYPE glade-interface SYSTEM
> "http://glade.gnome.org/glade-2.0.dtd">
> 
> <glade-interface>
> 
> <widget class="GtkWindow" id="window">
>   <property name="visible">True</property>
>   <property name="title"
> translatable="yes">window</property>
>   <property name="type">GTK_WINDOW_TOPLEVEL</property>
>   <property
> name="window_position">GTK_WIN_POS_NONE</property>
>   <property name="modal">False</property>
>   <property name="resizable">True</property>
>   <property
> name="destroy_with_parent">False</property>
>   <signal name="destroy" handler="gtk_main_quit"
> last_modification_time="Mon, 11 Aug 2003 22:50:33
> GMT"/>
> 
>   <child>
>     <widget class="GtkDrawingArea" id="drawingarea">
>       <property name="visible">True</property>
>       <property name="can_default">True</property>
>       <property name="can_focus">True</property>
>       <property name="events">GDK_POINTER_MOTION_MASK
> | GDK_BUTTON_RELEASE_MASK</property>
>       <property
> name="extension_events">GDK_EXTENSION_EVENTS_CURSOR</property>
>       <signal name="motion_notify_event"
> handler="on_drawingarea_motion_notify_event"
> last_modification_time="Mon, 11 Aug 2003 22:57:56
> GMT"/>
>       <signal name="button_release_event"
> handler="on_drawingarea_button_release_event"
> last_modification_time="Mon, 11 Aug 2003 22:58:03
> GMT"/>
>     </widget>
>   </child>
> </widget>
> 
> </glade-interface>
> 
> 
> 
> 
> 
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