Path: utzoo!attcan!uunet!lll-winken!lll-lcc!ames!ucsd!nprdc!malloy
From: malloy@nprdc.arpa (Sean Malloy)
Newsgroups: comp.binaries.ibm.pc.d
Subject: Re: Other binaries versions of ME wanted
Message-ID: <1261@skinner.nprdc.arpa>
Date: 4 Jan 89 14:40:25 GMT
References: <260@laas.laas.fr> <102760002@hpcvlx.HP.COM> <4067@drivax.UUCP> <12862@steinmetz.ge.com>
Reply-To: malloy@nprdc.arpa (Sean Malloy)
Distribution: na
Organization: Navy Personnel R&D Center, San Diego
Lines: 25

In article <12862@steinmetz.ge.com> davidsen@crdos1.UUCP (bill davidsen) writes:
|In article <4067@drivax.UUCP> frotz@drivax.UUCP (Frotz) writes:
|| Is source available that determines when an EGA card is in 43 line mode?  I
|| would like a code fragment if anyone knows how to do this.
|
|  There is a variable you can set that puts the display in the mode you
|want. There is no particular need to "tell what mode it's in" when you
|can just set it. Now if I could only get it to work just right with 132
|column mode...

Unfortunately, if you are doing mode switching (such as switching to a
graphics mode and back again when the program finishes), generally you
will want to put the display back the way it was when you started.
Therefore, a need to "tell what mode it's in" _does_ exist.

Equally unfortunately, IBM designed all of the EGA's registers as
Write Only. There is no way for a program to determine what mode the
display is in; the best that can be done is to set the display to a
mode that the program keeps track of. 


	Sean Malloy
	Navy Personnel Research & Development Center
	San Diego, CA 92152-6800
	malloy@nprdc.arpa