Re: drawing in a separate thread
Re: drawing in a separate thread
- Subject: Re: drawing in a separate thread
- From: Ricky Sharp <email@hidden>
- Date: Sat, 3 May 2008 08:44:58 -0500
On May 3, 2008, at 8:30 AM, Graham Cox wrote:
Cocoa already coalesces updates in this way, so when drawRect: is
called, the list of rects is the merged list.
I does raise a question though - is there a way to get, at any point
in time, the list of merged rects needing update from a view *at
that point* - in other words, outside of a drawRect: call, can I
found out what has been marked for update so far? That would be
useful.
You may have to step down to CoreGraphics (CG) APIs. Perhaps
CGWaitForScreenRefreshRects or some other API would be helpful?
___________________________________________________________
Ricky A. Sharp mailto:email@hidden
Instant Interactive(tm) http://www.instantinteractive.com
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