Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!ukma!xanth!nic.MR.NET!shamash!com50!pai!erc
From: erc@pai.UUCP (Eric Johnson)
Newsgroups: comp.sys.mac
Subject: Re: X for MAC-OS?
Summary: Two keyboard keys act as mouse buttons
Keywords: X mac mouse
Message-ID: <484@pai.UUCP>
Date: 26 Apr 89 13:13:59 GMT
References: <2847@tank.uchicago.edu> <1429@cunixc.cc.columbia.edu>
Organization: Prime Automation, Inc., Burnsville, MN
Lines: 53

In article <1429@cunixc.cc.columbia.edu>, lih@cunixc.cc.columbia.edu (Andrew Lih) writes:
> Well, one question that seems rather obvious, but no one has asked yet is:
> 
> 	How does the Mac emulate a two button mouse?
> 
> As you know, most X workstations (hosts) use at least a 2 button
> mouse, and some use 3.  Fortunately, on a two button mouse, X lets you
> hold down *both* buttons to emulate the 3rd button, but how does
> eXodus and other X packages for the Mac provide for the second and
> third button?
> 
> Inquiring minds want to know...

I'm not sure how eXodus does it, but running X11 R2 under A/UX (Apple's
version of UNIX), two keyboard keys emulate the extra two mouse buttons.

On the Extended keybaord (i.e., the PC-looking one), the actual mouse
button is the Left button.  The Middle button is the option key, I believe, and
the Right button is the Enter key on the keypad.  The command key (the
one with the pretzel symbol) is the Meta key (meta-1).  The Extended
keyboard has two sets of command and opyion keys, one on each side
of the space bar.

On the normal Apple ADB keyboard, I believe the extra mouse buttons are
emulated by the left and right arrow keys.   Personally, I like the
larger keyboard better, if only because of the placement of the bar (|)
and Tilde (~) keys--two keys I use a lot under UNIX.

By the way, Apple's X11 R2 server is quite fun, and I can't wait to
get my hands on their X11 R3 (which supports 256 colours, hurray :-).




> 
> =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
>  """""""   Andrew "Fuz" Lih	              Columbia University Center
>  | @ @ |   Instructional Computing	      for Computing Activities
>  <  ^  >					
>   \ - /    lih@cunixc.cc.columbia.edu	      AJLUS@CUVMB.BITNET
>    --- 	   lih@heathcliff.cs.columbia.edu  ...rutgers!columbia!cunixc!lih
> =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=


Hope this helps,
-Eric


-- 
Eric F. Johnson          | Phone +1 612-894-0313             | Are we
Prime Automation,Inc     | UUCP:   bungia!pai!erc            | having
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Burnsville, MN 55337 USA | DOMAIN: erc@pai.mn.org            | yet?