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From: egw.weakm@p3.lanl.gov (Eric Wasserman)
Newsgroups: comp.sys.mac.programmer
Subject: Re: How to access frame buffer on Mac II?
Message-ID: <14197@lanl.gov>
Date: 10 Feb 91 23:31:24 GMT
References: <14113@lanl.gov>
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In the previous posting I neglected to mention that the
code assumes that the video card is in 8-bit mode.

If you can live with a slightly slower method you might try
making an offscreen pixMap, hacking its pixels directly,
and then using CopyBits to put it into a window.  I think
that would be a lot less likely to break and should get rid
of those nasty null pointer problems (since QuickDraw
handles the access to the video ram for you).

Eric
egw.weakm@p3.lanl.gov