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From: jtt@cunixd.cc.columbia.edu (James T. Tanis)
Newsgroups: comp.sys.mac.programmer
Subject: Double-Buffering in QuickDraw
Summary: Anyone done it???
Keywords: QuickDraw, buffer, offscreen, DogCow
Message-ID: <1990Sep28.073335.30984@cunixf.cc.columbia.edu>
Date: 28 Sep 90 07:33:35 GMT
Sender: news@cunixf.cc.columbia.edu (The Daily News)
Organization: Columbia University
Lines: 11

I'm trying to speed up some animation I'm doing, and thought it would be a
really neat idea to swap in from an offscreen buffer. Too bad the tech
notes say that this does not speed things up. Ah, the joys of a graphics
machine... :-)

So, then I tried to set the bits in thePort->portBits directly, resulting
in improved performance and a spectacular crash...

Does anybody have a good solution to this sort of thing? 

-JT