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- From: jcmorris@mwunix.mitre.org (Joe Morris)
- Subject: Re: alt 255 ; question
- Message-ID: <jcmorris.715438566@mwunix>
- Sender: news@linus.mitre.org (News Service)
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- Organization: The MITRE Corporation
- References: <92238.135238MCHAMINA@ESTEC.BITNET> <exuptr.390.714845407@exu.ericsson.se> <17h4vvINNp71@matt.ksu.ksu.edu> <2mwyznh@rpi.edu>
- Date: Wed, 2 Sep 1992 12:56:06 GMT
- Lines: 23
-
- garrem@aix.rpi.edu (Matthew Olsen Garretson) writes:
-
- >Is this ALT-255 thing a function of DOS or is it built into the keyboard BIOS?
-
- >If the former is the case, it doesn't work with DOS 5 + 4DOS 4 + ansi.sys .
-
- >If the latter is the case, it doesn't work with my chips.
-
- The ability to generate an arbitrary byte is the responsibility of the
- program which fields the keyboard interrupts.
-
- If nobody is trying to be cute, it's the BIOS which interprets <ALT>+digits
- as a one-byte character. Programs which take over the keyboard hardware
- interface -- such as Windows -- are responsible for providing the same
- feature.
-
- I can't speak for 4DOS because I don't run it.
-
- BTW: the <ALT>+digit construct works only for the *keypad* digit keys. It
- will not work if you try to use the digit keys on the top row of the standard
- QWERTY keyboard.
-
- Joe Morris / MITRE
-