Re: GtkDrawingArea and mouse clicks

[Olexiy Avramchenko]

Jeff Abrahamson wrote:

I have a Glade project that declares a GtkDrawingArea:

     <child>
        <widget class="GtkDrawingArea" id="network_map">
          <property name="width_request">600</property>
          <property name="height_request">200</property>
          <property name="visible">True</property>
          <property name="can_default">True</property>
          <property name="has_default">True</property>
          <property name="can_focus">True</property>
          <property name="has_focus">True</property>
          <property name="extension_events">GDK_EXTENSION_EVENTS_ALL</property>
          <signal name="button_release_event" handler="on_network_map_button_release_event" 
last_modification_time="Sun, 15 Feb 2004 18:40:17 GMT"/>
          <signal name="button_press_event" handler="on_network_map_button_press_event" 
last_modification_time="Sun, 15 Feb 2004 18:48:36 GMT"/>
        </widget>
        <packing>
          <property name="padding">0</property>
          <property name="expand">True</property>
          <property name="fill">True</property>
        </packing>
     </child>
But my callback functions don't get called when I click the mouse in
the GtkDrawingArea.
Other callbacks (for different objects) are working, so I guess I'm
not totally confused, just a little.
Any suggestions what to try next?
 

You have a zero events mask on your drawing area, GTK+ just doesnt call 
your handlers.
You should put GDK_BUTTON_PRESS_MASK and GDK_BUTTON_RELEASE_MASK to 
"events" field (Properties dialog, Common tab, Events entry in glade). 
GTK+ analog gtk_widget_add_events() and gtk_widget_set_events():
http://developer.gnome.org/doc/API/2.0/gtk/GtkWidget.html#gtk-widget-set-events
http://developer.gnome.org/doc/API/2.0/gtk/GtkWidget.html#gtk-widget-add-events

   Olexiy

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