Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!ames!ncar!tank!ra_robert@gsbacd.uchicago.edu
From: ra_robert@gsbacd.uchicago.edu
Newsgroups: comp.sys.mac.programmer
Subject: Re: Wide offscreen bitmap won't receive draw commands
Message-ID: <5276@tank.uchicago.edu>
Date: 2 Sep 89 17:42:39 GMT
Sender: news@tank.uchicago.edu
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Organization: University of Chicago Graduate School of Business
Lines: 21

In article <3733@internal.Apple.COM>, parent@apple.com (Sean Parent) writes...
> 
>Inside Mac is correct. Drawing does not get clipped to visRgn on an off 
>screen Bit/PixMap with one exception. StdBits (not CopyBits) will obey the 
>visRgn. Most applications do not need to call
>StdBits directly so this is usually not a problem.
> 

Could someone from Apple (DTS?) clear this up once and for all?  I've been told
many times (and my experience has shown) that drawing _does_ get clipped to the
visRgn when using an offscreen bitmap -- and not just when calling StdBits
(which I've never used).  In fact the clipping to the visRgn was a bug that
took me a while to track down in one of my programs.

So: is IM right, wrong, or what?  Enquiring hackers want to know.

Robert
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ra_robert@gsbacd.uchicago.edu
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generic disclaimer: all my opinions are mine