Path: utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!tut.cis.ohio-state.edu!pt.cs.cmu.edu!b.gp.cs.cmu.edu!Ralf.Brown@B.GP.CS.CMU.EDU
From: Ralf.Brown@B.GP.CS.CMU.EDU
Newsgroups: comp.sys.ibm.pc
Subject: Re: MKS vi 3.1 versus Desqview 2.25
Message-ID: <2590d7f4@ralf>
Date: 21 Dec 89 12:17:40 GMT
Sender: ralf@b.gp.cs.cmu.edu
Organization: Carnegie Mellon University School of Computer Science
Lines: 27
In-Reply-To: <19433@watdragon.waterloo.edu>

In article <19433@watdragon.waterloo.edu>, ggdavis@crocus.waterloo.edu (Greg Davis) wrote:
 >In article <213400077@s.cs.uiuc.edu> jaswal@s.cs.uiuc.edu writes:
 >V>I had a very similar problem with the old MKS and Desqview 2.x on 
 >V>an XT.  If I told DV that the application wrote directly to the screen
 >V>(or something like that) then vi would march across the top line
 >V>and beep each time.  So I changed the option to say that it didn't 
 >V>write directly to the screen and that worked. You'd think that anything
 >
 >From what I can tell this is what happens.  MKS Vi checks for desqview
 >and desqview gives vi the screen address.  Vi then writes to the screen
 >address that desqview has returned, but since desqview is set so that
 >it is expecting vi to write directly to the screen instead of where
 >desqview told vi the screen is, it does something strange.  It appears

No, DV does just what you would expect: it returns the address of the physical
screen memory.	However, strange effects can happen if the program insists on
treating the physical screen memory as a virtual screen (I just fixed such a
bug in one of my programs recently).

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