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From: chapman@fornax.uucp (John Chapman)
Newsgroups: comp.sys.ibm.pc
Subject: Re: control-P = PrtSc on PC/AT's
Message-ID: <243@fornax.uucp>
Date: Tue, 17-Mar-87 02:13:24 EST
Article-I.D.: fornax.243
Posted: Tue Mar 17 02:13:24 1987
Date-Received: Wed, 18-Mar-87 06:09:14 EST
References: <246@applix.UUCP>
Organization: School of Computing Science, SFU, Burnaby, B.C. Canada
Lines: 17

> We have a terminal driver which maps certain keys to our functions, and
> we want to use control-P. Apparently DOS maps control-P to PrtSc, and
> if you don't have a PRN device, this goes into a slow, abnoxious loop
> telling you it can't write to the PRN device. I can't find this key
> mapping (^P) anywhere in the DOS documentation. Does anyone out there
> know how to disable this key mapping?
> 
> TIA,
> Jim Morton, APPLiX Inc.
> ...decvax!frog!halleys!applix!jim

This sounds like a holdover from some CPM systems where ctrl/p echo'd
all console output to the printer until ctrl/n was entered.  It may
be that the key codes are not mapped into the prtsc keycode but that
the function is wired into dos for that control code (ctrl/p).

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