Path: utzoo!utgpu!news-server.csri.toronto.edu!rutgers!usc!samsung!think.com!paperboy!osf.org!dbrooks
From: dbrooks@osf.org (David Brooks)
Newsgroups: comp.sys.atari.st
Subject: Re: TOS quirk with ALT key
Message-ID: <17689@paperboy.OSF.ORG>
Date: 3 Jan 91 21:09:04 GMT
References: <17625@paperboy.OSF.ORG> <2792@atari.UUCP>
Sender: news@OSF.ORG
Reply-To: dbrooks@osf.org (David Brooks)
Organization: Open Software Foundation
Lines: 19

In article <2792@atari.UUCP>, apratt@atari.UUCP (Allan Pratt) writes:
|> dbrooks@penge.osf.org (David Brooks) writes:
|> >...the keys in the top row, between "1" and
|> >"=", get 0x76 arbitrarily added to their scancodes before being
|> >returned to me.
|> 
|> That's not arbitrary; it's part of the VDI spec, which is really just a
|> codification of the behavior of the IBM PC keyboard/scancode
|> characteristics.  I don't know WHY it is, but the keys from 1 to = are
|> defined to return scan codes 0x78 to 0x83, and that's just the way it
|> is.

Thanks for the explanation, Allan.  A clarification: in the part you
edited out I explained that this only happens when ALT is depressed.
Otherwise, the scancodes 0x02 to 0x12 are returned.  Is *this* also
true of the IBM keyboard?
-- 
David Brooks				dbrooks@osf.org
Systems Engineering, OSF		uunet!osf.org!dbrooks