How to compose (or add) pixmaps ?

[Guillaume Laurent <glaurent worldnet fr>]

I'm looking for a nice way to create a pixmap by superposing two
ones. The solution I'm attempting right now is to use imlib, by
pasting both pixmaps on a GdkWindow (gdk_imlib_paste_image()), and
creating a new one out of the window (gdk_imlib_create_image_from_drawable()).

Would there be a better way ?

-- 
					Guillaume.
					http://www.worldnet.fr/~glaurent