Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10 UW 5/3/83; site uw-beaver Path: utzoo!watmath!clyde!burl!mgnetp!ihnp4!houxm!houxz!vax135!cornell!uw-beaver!info-mac From: info-mac@uw-beaver (info-mac) Newsgroups: fa.info-mac Subject: Re: Three button mouse on a mac? Message-ID: <1445@uw-beaver> Date: Fri, 10-Aug-84 19:47:46 EDT Article-I.D.: uw-beave.1445 Posted: Fri Aug 10 19:47:46 1984 Date-Received: Sat, 11-Aug-84 03:01:06 EDT Sender: daemon@uw-beave Organization: U of Washington Computer Science Lines: 18 From: Michael RubinI haven't put a scope on the Mac mouse, but the innards seem to be just optical shaft encoders (read: slotted wheels and LED's, one on each axis). Someplace in the Mac documentation it says the mouse sends 90 pulses/inch of travel. If I were doing this, I might be tempted to modify the Apple mouse instead; but I happen to dislike the feel of Hawleys. Your Z80 (or whatever) button coprocessor should probably insert codes into the Mac's INPUT stream rather than the output; that way you can make the Mac do appropriate things rather than hacking up your EMACS. Or the Z80 could translate one button into a regular click, another into double-click and the third into triple-click (I'm not sure if the Toolbox knows about triple-click). If you got really clever, you might find a way of interfacing the Z80 to the keyboard so that one button could act like shift-click and another like command-click. --Mike -------