home *** CD-ROM | disk | FTP | other *** search
- Path: sparky!uunet!zaphod.mps.ohio-state.edu!sol.ctr.columbia.edu!spool.mu.edu!agate!apple!apple!cambridge.apple.com!jwbaxter@halcyon.halcyon.com
- From: jwbaxter@halcyon.halcyon.com
- Newsgroups: comp.lang.lisp.mcl
- Subject: Re: Picture-files example
- Message-ID: <199211211652.AA09067@halcyon.com>
- Date: 21 Nov 92 16:56:07 GMT
- Sender: info-mcl-request@cambridge.apple.com
- Lines: 17
- Approved: comp.lang.lisp.mcl@Cambridge.Apple.C0M
- Original-To: lieber@MEDIA-LAB.MEDIA.MIT.EDU
- Original-Cc: info-mcl@cambridge.apple.com
-
- >This may not be Lisp's problem, it may be
- >endemic to the underlying pict manipulation functions, as not every Mac
- >program seems to agree on picts.
- >
- Henry,
- A file of type PICT is supposed to contain a 512-byte header area
- (written as zeros unless a particular application wants to use it),
- followed by the same data structure as a picture handle or PICT resource.
- Either the old or new format picture should work (the new format will
- appear blank in some old applications running very old System software).
- The 512-byte header is "left over" from original (ie, 1984) MacPaint,
- which stored user-customized patterns there.
- --John
-
- --------------
- John W. Baxter jwbaxter@halcyon.com [BAXTER.JOHN on AppleLink, from
- AppleLink only.]
-