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From: zben@ni.umd.edu (Ben Cranston)
Newsgroups: comp.sys.mac.programmer
Subject: Re: PICS
Summary: There is another resource type in there too
Message-ID: <1991Apr17.163145.28209@ni.umd.edu>
Date: 17 Apr 91 16:31:45 GMT
References: <91105.111926ACPS1072@Ryerson.CA> <11738@jarthur.Claremont.EDU>
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Organization: University of Maryland at College Park
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In article <11738@jarthur.Claremont.EDU> epan@jarthur.Claremont.EDU
(Eric C. Pan) writes:

> From my experimentation, I had discovered that PICS files are just 
> collection of PICT resources starting at ID=128.  So far I had no problem
> with the ones I have created.... (at least not from AfterDark)

I saw a description of the PICS format sometime recently but cannot remember
where.  There was a sequence of PICT resources starting at 128, but there was
also another optional resource type that contained information on how quickly
to play them back and other information.  The only other thing I remember is
that the boundsRect of the first PICT resource (128) defines the frame of the
picture, so if only small areas change then the subsequent PICTs can have
smaller boundsRects and only a smaller area gets redrawn.