Path: utzoo!attcan!utgpu!news-server.csri.toronto.edu!mailrus!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.os.msdos.programmer
Subject: Re: Changing option character from / to -
Message-ID: <26fb50c3@ralf>
Date: 22 Sep 90 11:53:39 GMT
Sender: ralf@b.gp.cs.cmu.edu
Organization: Carnegie Mellon University School of Computer Science
Lines: 22
In-Reply-To: <1990Sep21.190505.1542@Octopus.COM>

In article <1990Sep21.190505.1542@Octopus.COM>, stever@Octopus.COM (Steve Resnick ) wrote:
}In article <6867.26f929ec@vax1.tcd.ie> rwallace@vax1.tcd.ie writes:
}>Does anyone know how to change the MS-DOS option character from / to something
}>else? What I want to do is to change it from / to -, so you can type DIR -W
}>
}>The Turbo C++ manual says it's an INT 21h call, but doesn't say which one. I
}>can't find it documented anywhere.
}>
}This is done through UNDOCUMENTED DOS Function 37H This works like this:
}[...omitted...]

Turbo C 1.5/2.0 and Turbo C++ 1.0 have undocumented library functions
      int getswitchar(void) ;
and
      void setswitchar(char c) ;
which make the undocumented DOS call.  TC1.0 may have had them, but I can't
recall.
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