Path: utzoo!attcan!uunet!cs.utexas.edu!samsung!rex!wuarchive!decwrl!shelby!daemon
From: combs@sumex-aim.stanford.edu (Dave Combs)
Newsgroups: comp.sys.next
Subject: Bitmaps from views
Message-ID: <865@shelby.Stanford.EDU>
Date: 22 Nov 89 01:36:58 GMT
Sender: daemon@shelby.Stanford.EDU
Lines: 14

Gang,
I'm trying to speed up an interactive application by taking various View-
subclass objects and converting them to Bitmaps, which I can then composite
onto a window as I wish.  Can someone explain to me how this is done?
I've tried using "copyPSCodeInside:to:" to put the View data onto a stream
(which is in EPS format, and works fine).  I've then tried to use the
Bitmap function "newFromStream:" to read the data into a bitmap.  However,
this always chokes (quietly) on the second byte read in, and gives me
nothing.  Anybody have any idea what I'm doing wrong?  Is the Bitmap
expecting bitmap-type data from the stream, or is Postscript code okay?
I looked all through the manual, and couldn't find anything.

Thanks,
Dave  (combs@sumex-aim.stanford.edu)