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Mail Archives: djgpp/1993/03/17/04:28:49

Date: Wed, 17 Mar 93 09:42:02 +0200
From: "Grzegorz B. Mazur" <gbm AT ii DOT pw DOT edu DOT pl>
To: djgpp AT sun DOT soe DOT clarkson DOT edu
Subject: "what VESA graphics are?..."

Video Electronics Standards Association = VESA standard (current version 1.2)
provides common programming interface to all the VGA-class cards.
There are 8 functions, called as int 10 with ah = 4f, al = function#.
The functions provide detailed parameter queries for particular modes, 
mode setting, setting logical screen size, panning, bank switching and
palette depth control. The mode numbers are standarized, too.
The modes are up to 1280x1024 in 16M colors. Certainly not all are supported
on every card. Cards with 256KB memory probably support only 640x400x256
and 800x600x16.
The really great thing about VESA is that it is a standard...
More details on request.

Gregory

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