CAVEY GERARD wrote:
>
>thus i think it s a bit dirty... because i don t clear the previous drawing
>area back buffer!!
>how can i get a pointer to that back buffer
>i know i could use a global variable but...
>; i didn t find gdk_window_get_back_pixmap :P
>any idea?
>
In gtk+-2.0 gdk_window_set_back _pixmap() saves the pointer to your
pixmap
in bg_pixmap field of GdkWindowObject structure, but this call will
unref the previous
pixmap, so it will be auto-destroyed. To obtain the pointer you needed
you have to
cast ((GdkWindowObject*)widget->window)->bg_pixmap.
In case of gtk+-1.2 gdk doesn't save the pointer to your bg pixmap,
it just call
XSetWindowBackgroundPixmap. So, the only one way I see is to get the XID
of window background pixmap from X and call gdk_xid_lookup(),
however I dont know how to do this...
Olexiy
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