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From: bobb@vice.ICO.TEK.COM (Bob Beauchaine)
Newsgroups: comp.lang.pascal
Subject: Re: DOS Environment Variables
Message-ID: <7333@vice.ICO.TEK.COM>
Date: 22 Apr 91 16:16:23 GMT
References: <4744@ash54.UUCP>
Reply-To: bobb@vice.ICO.TEK.COM (Bob Beauchaine)
Distribution: comp
Organization: Tektronix, Inc., Beaverton,  OR.
Lines: 24

In article <4744@ash54.UUCP> hamilton@motcid.UUCP (Danial Hamilton) writes:
>My son programs using Turbo Pascal, and would like to pass
>a value from his Pascal program to another program via a
>DOS environment variable.  Can he do this?  Can someone
>tell him how?  He knows how to set the errorlevel, and could
>accomplish his goal that way, but it is not as elegant of a 
>solution as he would like.  Any help out there?

  The discussion on permanently changing an environment variable
  was on this group some time ago; sorry, I can't refer you to
  an article, but perhaps someone else can.  Be warned; the topic
  is probable more advanced than you think.

  Another scenario you might consider is using the Dos interprocess
  communication area.  Any good text on the inner workings of MS-DOS
  will contain an explanation.  The one I know of is Peter_Norton's_
  Guide_to_the_IBM_PC.

/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\ 

Bob Beauchaine bobb@vice.ICO.TEK.COM 

C: The language that combines the power of assembly language with the 
   flexibility of assembly language.