Path: utzoo!utgpu!news-server.csri.toronto.edu!rutgers!cmcl2!sbcs!usenet
From: rmiller@sbcs.sunysb.edu (Robert Miller)
Newsgroups: comp.sys.mac.programmer
Subject: Off-screen bitmaps?
Message-ID: <1990Aug18.201940.10494@sbcs.sunysb.edu>
Date: 18 Aug 90 20:19:40 GMT
Sender: usenet@sbcs.sunysb.edu (Usenet poster)
Organization: State University of New York at Stony Brook
Lines: 11


I'm developing an application which uses graphics.  I'm considering
using an off-screen bitmap to store my graphics to make scrolling
and updating easier.  Although this method is mentioned in IM and
Macintosh Revealed, I haven't seen how this would be done.  Is it
as easy as declaring an object of type GrafPort and then opening it
with OpenPort?  What code would I need to call so that I can draw
off-screen as if I were drawing in a window?

Robert
rmiller@sbcs.sunysb.edu