Xref: utzoo comp.lang.pascal:6735 comp.os.msdos.programmer:5129
Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!usc!samsung!balrog!ctron.com
From: dj@ctron.com (DJ Delorie)
Newsgroups: comp.lang.pascal,comp.os.msdos.programmer
Subject: Re: VGA (and other) border areas
Message-ID: <1492@balrog.ctron.com>
Date: 15 May 91 13:43:25 GMT
References: <1991May14.204252.5492@ux1.cso.uiuc.edu>
Sender: news@balrog.ctron.com
Reply-To: dj@ctron.com
Followup-To: comp.lang.pascal
Organization: None whatsoever
Lines: 13
Nntp-Posting-Host: bragi

In article <1991May14.204252.5492@ux1.cso.uiuc.edu>, amead@s.psych.uiuc.edu (alan mead) writes:
> Can anyone tell me how to cause the border area of a normal display to
> have a particular color?

I've done this, but it's UGLY.  Why? The EGA/VGA/SVGA scan so fast
they don't have time to let the scan reach the edge of the CRT before
pulling it back.  Thus, when the scan is enabled during these times,
you don't see a colored border, you see the retrace process instead.  In
order to get it close, you have to reprogram the CRTC registers, and
it's neither trivial nor reliable (aka portable).

DJ
dj@ctron.com