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From: tedj@hpcilzb.HP.COM (Ted Johnson)
Newsgroups: comp.sys.mac
Subject: Re: how to draw on an offscreen bitmap
Message-ID: <870015@hpcilzb.HP.COM>
Date: Fri, 16-Oct-87 17:06:27 EDT
Article-I.D.: hpcilzb.870015
Posted: Fri Oct 16 17:06:27 1987
Date-Received: Sun, 18-Oct-87 23:50:37 EDT
References: <5330@jade.BERKELEY.EDU>
Organization: Hewlett Packard  DTC
Lines: 16


Look in the July 1987 issue of MacTutor.  There is an excellent 
article which demonstrates how to use offscreen bitmaps on p.67
("Pascal Procedures,  Animated BitMaps"--Scott Boyd).  It is
written in MPW Pascal, and seems pretty straightforward (I am in
the process of translating it to LightSpeed C).  Good luck!

		-Ted

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Ted C. Johnson
Hewlett-Packard, Design Technology Center
Santa Clara, CA
(408)553-3555
UUCP: ...hplabs!hpcea!hpcid!tedj
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