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From: busey@milton.u.washington.edu (Thomas Busey)
Newsgroups: comp.sys.mac.programmer
Subject: Alternative Video Pages for the Mac ][?
Message-ID: <1991May9.181556.18280@milton.u.washington.edu>
Date: 9 May 91 18:15:56 GMT
Sender: busey@milton.u.washington.edu (Thomas Busey)
Organization: University of Washington, Seattle
Lines: 21


 I'm looking for code which will do page flipping on the Macintosh ][
computers.  I already have code which will allocate the second video
screen and flip pages on 'Toaster Macs', and I'm trying to do the same
thing on my Mac ][.  

My thanks to David Temkin for introduction the idea to me and providing
a starting point:  The technique is described in Designing Cards and
Video Drivers for the Macintosh Family, pp. 166-174.  This documentation,
however, is not for the faint of heart.  Apple has not gone out of their
way to provide easy access to this feature.  I would appreciate any 
information the net could provide on this topic.

Code fragements would be especially appreciated (in Pascal?- well,
beggers can't be choosers...)
Thanks,
Tom Busey
busey@milton.u.washington.edu
University of Washington, Seattle, WA
{^^^ A stone's throw away from Microsoft and Nintendo- probably a
good reason to throw stones!}