Path: utzoo!mnetor!tmsoft!torsqnt!hybrid!scifi!bywater!uunet!isis!ebergman
From: ebergman@isis.cs.du.edu (Eric Bergman-Terrell)
Newsgroups: comp.sys.ibm.pc.misc
Subject: Animation in Win 3.0?
Message-ID: <1991Feb9.182402.24992@isis.cs.du.edu>
Date: 9 Feb 91 18:24:02 GMT
Reply-To: ebergman@isis.UUCP (Eric Bergman-Terrell)
Organization: Nyx -- Public access Unix, U. of Denver, dept. of Math/CS
Lines: 18


I have an MS-DOS application that I'm considering porting to MS-Windows 3.0.
The application uses the 2 page mode of EGA/VGA cards to do animation.  In
other words, the program draws to a non-visible page, then makes that page
visible, and while that page is displayed, draws the next frame to the 
non-visible page, etc.

Anyway this results in fairly crisp animation...

My question:  how is this done in Windows 3.0?  Will Windows use double-
buffered graphics if an EGA or VGA card is in use?  Or will it do a 
software bitblt?

In other words:  is it possible to do crisp animations that involve the
entire screen?


Terrell