Re: Can't retrieve actual GdkWindow for a Gtk::Widget

["Marco Scholten" <mscholtn xs4all nl>]

----- Original Message ----- 
From: "Timothy M. Shead" <tshead k-3d com>
To: <gtkmm-list gnome org>
Sent: Saturday, December 17, 2005 5:33 AM
Subject: Can't retrieve actual GdkWindow for a Gtk::Widget


> I am working on some tutorial-playback functionality for a gtkmm-based
> application, K-3D (http://k3d.sourceforge.net).  To this end, I would
> like to synthesize Gdk events and insert them into the main event loop.
>  This would not be difficult, except that I cannot obtain the actual
> GdkWindow for a given widget.  If you run the attached example, press
> the button, and view the console output, you will see that the GdkWindow
> in the GdkEvent object is not the same as the window returned by
> button.get_window()->gobj().  In fact, the latter returns the *parent*
> of the GdkEvent window.  I need to obtain the actual widget window so I
> can generate corresponding events for it.  Could anyone comment on this
> behavior?
>
> Many thanks,
> Tim Shead
A Gtk::Button has no window for drawing, you can test this with 
button.has_no_window(). So button.get_window()->gobj() will return the 
GdkWindow of its container.

It does have an event_window for handling events, that's the one you want, 
you can get this with:

   button.gobj()->event_window

--

Marco