RE: pixmaps

["Brian Hanley" <brian hanley flextrade com>]

Oops.

Figured it out -- the pixmap I was creating was of
a different depth than the window I was adding the
image widget to.



> -----Original Message-----
> From: gtk-app-devel-list-bounces gnome org 
> [mailto:gtk-app-devel-list-bounces gnome org] On Behalf Of 
> Brian Hanley
> Sent: Monday, October 18, 2004 1:03 PM
> To: GTK App Dev List
> Subject: pixmaps
>
>
> Hi All,
>
> I would like to draw on a GdkPixmap, and place the pixmap in 
> an GtkImage widget. Unfortunately, whenever I call "show" on
> the resulting image widget, I get an Xlib error.
>
> I suspect it may be a colormap or GC problem, but am not sure.
>
> I suppose I could use a GtkDrawingArea, but I'd prefer to avoid an
> unnecessary "expose" callback. Less complicated and more efficient
> to have a widget that knows how to redraw itself without my help.
>
> Which colormap and GC should I be using?
> What depths have to match up?
>
> Is there a way to get a better error description than just X 
> error code 8, "bad match"?
>
> Tutorials/advice?
>
> Brian