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From: efricha@vortex.rti.org (Eric F. Richards)
Newsgroups: comp.os.msdos.programmer
Subject: Paradise VGA: Two video pages?
Message-ID: <1991Mar6.101436.1@vortex.rti.org>
Date: 6 Mar 91 15:14:35 GMT
Sender: news@rti.rti.org (USENET News System)
Organization: Tybrin Corporation
Lines: 26

I am posting this for someone who does not have access to news:

	I have a question regarding paging using the Paradise VGA
Professional video card.

	I am trying to create two separate read/write pages so that 
I can rapidly switch between two mode 12h (640X480 16 color) images.  
This support is provided in Microsoft C 5.1 for video modes of lower
resolution by the _setvisualpage and _setactivepage functions.  I want 
to be able to write to the non-visible page and then make that page the 
visual one so it looks like the picture was drawn instantly.  This action 
would be repeated for several images to give a "motion picture" effect.

	Can this be done?  How?  Please don't skip details since
I have never tried this before.

	Please send replies to richarde@eglin.af.mil -- I'll summarize
if there is enough (or any :-)) interest.

--------
Eric Richards, Tybrin Corporation
internet: richarde@eglin.af.mil
alternate: efricha@vortex.rti.org

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