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Path: utzoo!utgpu!water!watmath!clyde!cbosgd!ihnp4!homxb!houxm!mhuxt!mhuxm!mhuxo!ulysses!allegra!mit-eddie!interlan!backman
From: backman@interlan.UUCP
Newsgroups: comp.sys.ibm.pc
Subject: Keyboard I/O Ports
Message-ID: <134@interlan.UUCP>
Date: Mon, 15-Jun-87 14:37:42 EDT
Article-I.D.: interlan.134
Posted: Mon Jun 15 14:37:42 1987
Date-Received: Wed, 17-Jun-87 02:32:04 EDT
Reply-To: backman@interlan.UUCP (Larry Backman)
Distribution: na
Organization: MICOM-Interlan, Boxborough, MA
Lines: 40







	 HELP!

	 I need to emulate the keyboard programmatically, that is,
	 generate keycodes (by writing by some i/o port??) that can be
	 read via an IN instruction from the keyboard data port, 60H.

	 The scenario:

			+-----------------------+
			|	PROGRAM X	|
			+-----------------------+

			+-----------------------+
			|  RESIDENT PROGRAM Y	|
			+-----------------------+

	 Program X is running in the foreground and takes over the
	 keyboard interrupt (INT 9).  Each time it wakes up via the INT
	 9 it does an IN instruction from the keyboard data port 60H.
	 When the user types ALT Z, Program X terminates.

	 If Resident Program Y must exit while Program X is running, I
	 would like the resident program to generate the key sequence
	 ALT Z so that Program X exits cleanly, prior to Resident
	 Program Y exiting.




					Marcy Nash
					Micom - Interlan
					ihnp4-------\
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