copying pixmaps

[Joel Uckelman <uckelman nomic net>]

Hi,

I writing something for which I need two separate copies of the same 
GdkPixmap--one of which will be drawn to, while the other is used to 
restore areas of the first to their initial state. Since the XPMs I'm 
loading to make GdkPixmaps have the potential to be rather large, it would 
be nice if I could load them once and then make copies in memory instead of 
calling gdk_pixmap_create_from_xpm twice. I presume there is some simple 
way to do this, but I don't see any copy functions.

Is there a way to get the dimensions of a GdkPixmap after creating it from 
an arbitrarily-sized XPM? If I could do that my problem would be solved, 
since I could create a blank GdkPixmap of the appropriate size and use 
gdk_draw_pixmap to copy from one to the other.

Any help would be greatly appreciated.

-- 
J.