Graphics-mask

Hello,

I have a pane generally drawn on a offscreen port and then pasted to the
port with the gp:pixblt function. On the other hand I draw also directly on
the visible port, for instance for some selection rectangle.

If I draw on the visible port with mask, and directly after draw on the
offscreen port and paste the pixels to the visible port, it doesn't work's
normally : the gp:pixblt operation seems to be always on the scope of the
previous call to with-score-mask. However it's not (and the mask slot is NIL
in the graphics-port-graphics-state structure...).

So I tried : (with-graphics-mask (pane pane-geometry) (pixblt ...)), to
force the mask to reset, but it doesn¹t change anything.

The only solution I found, is to draw something (for instance one white
point) in the visible port, and then the mask on this port seems to be
really erased...

Anybody experiment something similar ?

Thanks by advance

Denis


-------------------------------------------------------
Denis Pousseur
70 rue de Wansijn
1180 Bruxelles, Belgique

Tel : 32 (0)2 219 31 09
Mail :  denis.pousseur@gmail.com
-------------------------------------------------------