Re: Dos drivers under Windows

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#394

From: Arindam Banerji
Date: Wed, 15 Apr 1992 10:46

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The solution depends upon the direction of the communication. The
Windows app can use the DPMI interface to talk to the 
 DOS device driver ( enhanced or standard modes ) . The simplest way the
DOS device driver can communicate with the 
 windows app is to set up a shared region in low memory ( not
necessarily low, if enhanced mode is being used ), and
 let a Windows DLL poll it from time-to-time. This is not as bad as it
seems, since in enhanced mode the Windows vitual 
 machine is non-premptable, although the DOS boxes are. 

Arindam Banerji
(axb@irishvm.pcl.nd.edu)
(axb@cse.nd.edu)
(219)-239-5273

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From: axb@cse.nd.edu (Arindam Banerji)
Newsgroups: comp.windows.ms.programmer
Subject: Re: Dos drivers under Windows
Message-ID: <1992Apr15.104655.26473@news.nd.edu>
Date: 15 Apr 92 10:46:55 GMT
Sender: news@news.nd.edu (USENET News System)
Organization: University of Notre Dame
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To: nar@math.wayne.edu (Mark Narduzzi)