Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!cs.utexas.edu!uunet!pdn!boake2!sherpa!rac
From: rac@sherpa.uucp (Roger Cornelius)
Newsgroups: comp.binaries.ibm.pc.d
Subject: Re: undocumented DOS call for switch character
Message-ID: <152@sherpa.uucp>
Date: 24 Sep 89 18:58:29 GMT
References: <933@sl10c.concurrent.co.uk>
Organization: Personal System Computing, St. Petersburg, FL
Lines: 23

From article <933@sl10c.concurrent.co.uk>, by asc@concurrent.co.uk (Andy Chittenden):
> Does anybody know what the undocumented DOS calls are to set and get
> the switch character?
> 
> Thanks in anticipation, Andy

From inter489.arc, the interrupt list regularly posted in c.b.i.p.c. and
maintained by Ralf Brown:

---------------------------------------------
INT 21 - DOS 2+ internal - GET SWITCHAR
	AX = 3700h
Return: AL = FFh unsupported subfunction
	DL = current switch character
---------------------------------------------
INT 21 - DOS 2+ internal - SET SWITCHAR
	AX = 3701h
	DL = new switch character
Return: AL = FFh unsupported subfunction
---------------------------------------------

--
Roger A. Cornelius           rac@sherpa            uunet!sherpa!rac