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From: warwick@cs.uq.oz.au (Warwick Allison)
Newsgroups: comp.sys.atari.st.tech
Subject: Re: Force Desktop Res Change?
Message-ID: <1131@uqcspe.cs.uq.oz.au>
Date: 3 May 91 00:20:10 GMT
References: <1991Apr28.014020.3838@lonex.radc.af.mil>
Sender: news@cs.uq.oz.au
Reply-To: warwick@cs.uq.oz.au
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>Also, is there any way to force a resolution change WITHOUT a resulting
>reboot of the system.  I mean, from desktop (med) to desktop (low) and vice-versa?

Find out that, and you can also switch to hi-resolution without rebooting too.

It can easily be done, but letting AES know is the problem (as you doubtlessly
realise).  When I write low res games, I write them on the mono-monitor,
and just switch to the colour monitor to run them.  All you have to do
is set the trap vector for it to your own routine.

You can force the mouse to be bounded correctly by re-initialising it (XBIOS).

The problem does remain, how the get the AES to work properly.  There are
about a half dozen places in memory that have "640,400" or "639,399" stored,
so there is probably no central, legal way to slap AES in the face to wake
it up to a change in res.  Ah well.

Warwick.
--
  _-_|\       warwick@cs.uq.oz.au
 /     *  <-- Computer Science Department,
 \_.-._/      University of Queensland,
      v       Brisbane, AUSTRALIA.