On 27.10.2007 at 11:36 John Stiles wrote:
>Did you try setting the window's clip region to the same region you
>returned to kEventWindowGetRegion?
>Or passing this region to CopyBits as the maskRgn parameter?
>I've never attempted either of these, just curious.
Oh, now that's brilliant. Calling SetClip() right before CopyBits() seems
to do exactly what I want. I'll have to play with it some more to see if
it does everything that I expect, but it seems very promising.
The maskRgn parameter is not very helpful because I'm also doing
lots of partial blits with CopyBits() and then I would have to crop
the clip region before every partial blit AFAICS. But calling SetClip()
before CopyBits() seems to be fine.
I'll try some more, and see if it's really a perfect solution. Sounds
almost to easy to be perfect, but who knows :-)
Anyways, big thanks for the hint. Hopefully this saves me a lot of work...
Andreas
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