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> I think they are. set_clip_ex() deals with the clipping rectangle, and
> these two functions deal with turning clipping on and off.
Ok.
> > Moreover, I think we shoud devise a way to specify an "empty" clipping
> > rectangle (for which cl = cr and ct = cb) so that all drawing operations
> > are silenced, provided that it doesn't require an extensive rework of all
> > the drawing routines of the library.
>
> Is w=0, h=0 sufficient?
Yes, of course. But I wonder whether passing coordinates (a la set_clip) is
not better than passing width and height.
--
Eric Botcazou