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From: rommel@Informatik.TU-Muenchen.DE (Kai-Uwe Rommel)
Newsgroups: comp.os.os2.misc
Subject: Re: (parallel ports and) second monitors
Message-ID: <1991Mar22.081310.6083@Informatik.TU-Muenchen.DE>
Date: 22 Mar 91 08:13:10 GMT
References: <1991Mar20.075040.6010@morrow.stanford.edu> <8345@mentor.cc.purdue.edu>
Sender: news@Informatik.TU-Muenchen.DE
Organization: Technische Universitaet Muenchen, Germany
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In article <8345@mentor.cc.purdue.edu> lairdkb@mentor.cc.purdue.edu (Kyler Laird) writes:
>The second monitor must be monochrome?  I assume that you mean a non-graphic
>monochrome.
Hercules cards work too. But you cannot use the graphics mode unless you
program it on the hardware yourself.

>If so, how is it run?  Can standard OS/2 applications use it?
If OS/2 is properly installed, yes. Then you can switch with mode mono
and mode co80 between the two displays. Programs that know about the
card, can also write directly onto it, even PM programs can to this for
debugging purposes (there was a new IOCTL functin with 1.2 which allows
a program to obtain a (writable) selector for memory location physical
0xB000 where the screen buffer for the mono card is located).

Kai Uwe Rommel