Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!iuvax!pur-ee!pur-phy!cca
From: cca@pur-phy (Charles C. Allen)
Newsgroups: comp.sys.mac
Subject: Re: control characters in terminal emulation progs
Summary: control space give control-@ (NUL)
Keywords: Red Ryder 10.3, VersaTerm 4.0
Message-ID: <2341@pur-phy>
Date: 2 Jul 89 02:50:13 GMT
References: <14666@ut-emx.UUCP>
Organization: Purdue Univ. Phys Dept, W.Lafayette, IN
Lines: 20

In article <14666@ut-emx.UUCP>, jay@ut-emx.UUCP (Jay Boisseau) writes:
> When I try to type a ctrl-f (forward-one-character), or most any other
> ctrl character, everything is OK.  But when I try to type ctrl-@, or any
> of the ctrl characters involving a number key or shifted number key, I
> get the number entered into my text (whether I used shift or not).  I am
> using emacs, and have tried this with both RR 10.3 and VersaTerm 4.0.
> For example, to set the mark, the command is ctrl-@ (ctrl-shift-2).  This
> works fine on the GraphOn 225 I am currently using, but on my Mac is
> enters a '2' into the text, and nothing else.

Well, VersaTerm-PRO 3.0.2 handles control-space as ASCII NUL, which is
what control-@ is supposed to emit.  Note that this is a vt100ism.  I
would be really surprised if VersaTerm 4.0 doesn't do the same thing.
The only other "legal" shifted control character I can think of is
control-^, which works fine in VT-PRO.

VT-PRO has a built-in keyboard remapper, so you don't have to fool
around with ResEdit, as others have suggested.

Charles Allen		cca@newton.physics.purdue.edu