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From: Ken.Knight@f421.n109.z1.fidonet.org (Ken Knight)
Newsgroups: comp.sys.mac.programmer
Subject: Re: MacPaint file format.
Message-ID: <3879.27D8C0AB@blkcat.fidonet.org>
Date: 8 Mar 91 02:02:04 GMT
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>From: Jim.Spencer@p510.f22.n282.z1.mmug.edgar.mn.org.org (Jim
>Spencer)
>Date: 6 Mar 91 00:22:24 GMT
>Message-ID: <668300445.2@mmug.mmug.edgar.mn.org.org>
>Newsgroups: comp.sys.mac.programmer
>
>
>David john burrowes writes in a message to All
>
>DJB> Perhaps I'm overlooking something painfully obvious, but I can't
>DJB> figure out what format the data in a MacPaint document is
>formatted
>DJB> in. Initially I assumed it would be a direct dump of a bitmap
>DJB> or perhaps a picture data type. But the information in a test
>DJB> file I created doesn't mesh with these at all. Indeed. I
>couldn't
>DJB> find a direct hex representation of the bitmap I'd created
>anywhere
>DJB> in the file. And I can't find further help in Inside Mac
>anywhere.
>DJB>
>DJB> Thus. I would appreciate: pointers to the portion(s) of IM that
>DJB> I should read. or explanations of the format of a MacPaint file.
>DJB> or aid in getting a tech note that would explain it (my copy
>DJB> of the tech notes stack is zapped, and I don't have FTP access).
>DJB> or any other nifty ideas you have.
>
>The MacPaint document format is detailed in Tech Note 86.  There's got
>to be
>someone around who can print that one document for you or send you a
>fresh
>copy of the stack.
 
Actually, all the technote says it that it doesn't apply anymore since
MacPaint went over to Claris. Let's see in my original copy of the note
it says the format is like this:
  MPHeader = record
     version: longint;
     patArray: array [1..38] of pattern;
     futureStuff: packed array [1..204] of signedbyte;
  end;
 
If version is 0 then ignore the 512 bytes of the header. In fact, you
might as well just ignore it. What follows is a compressed (via
_PackBits) 576x720 bitmap. Hope that helps...
 
  ** Ken **


--  

        Ken Knight, Ken.Knight@f421.n109.z1.fidonet.org
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