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From: dxandy@cs.widener.edu (Andrew J. Greenshields N3IGS)
Newsgroups: comp.sys.mac.programmer
Subject: Drawing to the screen
Message-ID: <=CA-L1H@cs.widener.edu>
Date: 11 Jun 91 20:39:33 GMT
Organization: Widener CS Dept
Lines: 20
Nntp-Posting-Host: ashley.cs.widener.edu


  I am just getting into programming the Mac and have a question about 
drawing items on the screen and having them move, in other words animation.
My first thought was to use icons, but when I examined some resources of 
programs that used animation, Pararena for example, their individual frames
were stored as one PICT resource.  How would you get the individual frames
from one 'sheet' of frames?
  
  I have another question about a background for an animation.  I had thought
that it might be possible to open more than one GrafPort for a window and
use one for the background and one for the animation.  How do you force the
background to redraw after it has been covered by another graphic item?

Thanks in advance.

-- 
Andrew J. Greenshields N3IGS | "We call him Neutron because he`s so positive."
dxandy@cyber.widener.edu     |     Female scientist in  This Island Earth     
dxandy@cs.widener.edu        |    ****** STANDARD DISCLAIMERS APPLY ******     
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