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Article #5043Paradise VGA: Two video pages?
From: Eric F. Richards
Date: Wed, 06 Mar 1991 15:14
Date: Wed, 06 Mar 1991 15:14
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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 Standard disclaimers apply; all flames to NUL, /dev/null, NLA0:, or BB: (your choice...)
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arc1-ca.pugleaf.net!utzoo!news-server.csri.toronto.edu!cs.utexas.edu!sdd.hp.com!spool.mu.edu!news.cs.indiana.edu!rutgers!mcnc!rti!vortex.rti.org!efrichaShow Full Headers
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Path: arc1-ca.pugleaf.net!utzoo!news-server.csri.toronto.edu!cs.utexas.edu!sdd.hp.com!spool.mu.edu!news.cs.indiana.edu!rutgers!mcnc!rti!vortex.rti.org!efricha 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