On Fri, 16 Sep 2016 06:04:09 -0500, Robby Findler
<ro...@eecs.northwestern.edu> wrote:

>You could draw into a bitmap and then have on-paint draw that bitmap, too.

Yes. "Double buffering" with an off-screen bitmap is the best way to
minimize redrawing.

However, it also should be pointed out that the DC has a clipping
region.  When a region is set, drawing will occur only within the
region's boundaries - any pixels outside the region will be preserved.



You received this message because you are subscribed to the Google Groups 
"Racket Users" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to racket-users+unsubscr...@googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

Reply via email to