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From: ta1@h.cc.purdue.edu (Bob Rusbasan)
Newsgroups: comp.graphics,comp.sys.ibm.pc.programmer
Subject: Turbo C CGA Hidden-page animation
Keywords: Possible to fake hidden pages in CGA with Turbo C?
Message-ID: <4699@h.cc.purdue.edu>
Date: 10 Apr 90 01:26:37 GMT
Reply-To: ta1@h.cc.purdue.edu (Bob Rusbasan)
Followup-To: comp.graphics
Distribution: usa
Organization: Purdue University
Lines: 20

Hi.  I'm currently writing a program for my XT-compatible and would like to
be able to write to a hidden page in CGA like I'd be able to if I had V/EGA.
I'm currently animating by XORing the image onto the screen, but the result
when object overlap is not very professional-looking.

I've tried copying the image in various ways, but it's just too much trouble
and takes too much time to restore damaged things, especially when they're
also moving.

I know how to save a screen in user RAM, but I don't know how to or if it's
possible to put an image onto it with Turbo C.  Does anyone know how it could
be done?

Thanks.

Bob Rusbasan
bob@en.ecn.purdue.edu
teh@sage.cc.purdue.edu
ta1@h.cc.purdue.edu
bob@titan.ecn.purdue.edu