Re: How do expose_events work?

["Maher Awamy" <muhri muhri net>]

On Tue, 31 Oct 2000 20:37:50 +0100 (CET), Jeans said:

>  Hi,
>  
>  I've written my own container and it used to work perfect so far.
>  I can add buttons, labels,.. But today, I tried to add a gtk_drawing_area.
>  
>  The problem is that this drawing area does _not_ get any expose_
>  events (although I used gtk_widget_set_events(m_hDrawingArea,
>  GDK_EXPOSURE_MASK)).

after doing that, did you do a gtk_signal_connect(GTK_OBJECT(yourdrawingarea),
"expose_event", somefunction, data) ??

>  
>  It does get configure_event's though.
>  I tried to connect to a expose_event of a gtk_button in my 
>  container and that works fine.
>  
>  Does a gtk_drawing_area have an X-window? or is it a thin
>  component like a label?

It does have a window (drawingarea->window)

>  I have a expose handler in my container that forwards events
>  to children without a window:
>  
>  if (GTK_WIDGET_DRAWABLE(child) && GTK_WIDGET_NO_WINDOW(child) &&
>      gtk_widget_intersect(child, &event->area, &child_event.area))
>            gtk_widget_event(child, (GdkEvent*)&child_event);
>  
>  So, if the drawing_area has an X-window, the problem can't be
>  with my container? can it?
>  Anybody sees what i'm missing?
>  
>  Thanks,
>  
>       Jan Struyf
>  
>  <portablegui.sourceforge.net>
>  
>  
>  
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>  
>  

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