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From: lsr@Apple.com (Larry Rosenstein)
Newsgroups: comp.sys.mac.programmer
Subject: Re: Emergeny help on picture drawing wanted!!!
Message-ID: <11991@goofy.Apple.COM>
Date: 7 Feb 91 01:51:11 GMT
References: <1991Jan29.194323.7665@cs.umu.se> <91029.212938CXT105@psuvm.psu.edu> <1991Jan30.183547.3571@nada.kth.se>
Sender: usenet@Apple.COM
Organization: Apple Computer, Inc.
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In article <1991Jan30.183547.3571@nada.kth.se>, d88-jwa@dront.nada.kth.se (Jon W{tte) writes:
> 
> 	Rect clipRect = { -32768 , -32768 , 32767 , 32767 } ;
> 
> if you now offset the picture, you offset the clip rect as well.
> 
> 	OffsetRect ( & clipRect , 100 , 100 ) ;
> 
> now clipRect == { -32668 , -32668 , -32667 , -32667 } That's
> an empty rect (top, left > bottom, right)

Absolutely right.  This is why you always should set a minimum clipping
region when recording a picture.