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From: cmcmanis@pepper.UUCP
Newsgroups: comp.sys.amiga
Subject: Re: Perfect Sound Isn't, and Possible Hardware Trouble
Message-ID: <20034@sun.uucp>
Date: Fri, 29-May-87 14:38:12 EDT
Article-I.D.: sun.20034
Posted: Fri May 29 14:38:12 1987
Date-Received: Sat, 30-May-87 11:07:30 EDT
References: <8705290547.AA04010@ingres.Berkeley.EDU>
Sender: news@sun.uucp
Reply-To: cmcmanis@sun.UUCP (Chuck McManis)
Distribution: world
Organization: Sun Microsystems, Mountain View
Lines: 23
Summary: What PARC did...

In article <8705290547.AA04010@ingres.Berkeley.EDU> (Doug Merritt) writes:
>
>My current favorite is to translate simultaneous RIGHT/LEFT mouse clicks
>into a MIDDLE (IECODE_MBUTTON) click. I've been interested in using both
>clicks to widen the mouse input bandwidth, and the MIDDLE message is already
>supported by AmigaDOS...
>	Doug Merritt		ucbvax!ingres!hatcher

Back when the Xerox Palo Alto Research Center was inventing all this neat
stuff that Apple was going to 'borrow' they did a lot of research on 
pointing devices. The results of that research is detailed in several
papers however the stuff that made it to the Xerox product line is 
most interesting. They determined that a two button mouse was optimal
with its three states 'left', 'right', and 'chord'. On the 8010 (sometimes
referred to as the Dandelion) pressing both buttons would pop up a menu.
The left and right buttons were usually used for making and 'extending'
a selection on the screen.



--Chuck McManis
uucp: {anywhere}!sun!cmcmanis   BIX: cmcmanis  ARPAnet: cmcmanis@sun.com
These opinions are my own and no one elses, but you knew that didn't you.