Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!wuarchive!zaphod.mps.ohio-state.edu!sol.ctr.columbia.edu!ira.uka.de!fauern!fauern!csbrod
From: csbrod@medusa.informatik.uni-erlangen.de (Claus Brod )
Newsgroups: comp.sys.atari.st.tech
Subject: Re: Reading both buttons from Eventmulti
Message-ID: <3209@medusa.informatik.uni-erlangen.de>
Date: 2 Nov 90 07:48:51 GMT
References: <9479@jarthur.Claremont.EDU>
Organization: CSD, University of Erlangen, W-Germany
Lines: 33

dcrevier@jarthur.Claremont.EDU (Dan Crevier) writes:

>I remember a while ago people were discussing how to get an event from the
>right button _or_ the left button.  I wasn't paying attention then, but now
>I have found I want to do that, and I can only seem to read events from both
>buttons pressed together.  I think I remember the solution being simple.
>Could someone post the solution?

One method - undocumented though, but valid for all TOS/GEM versions -
is to add 256 to the number of clicks waited for. This negates the condition
for a return from evnt_multi due to clicks. Example:

	mstate = 0
	mclicks = 256+2
	mbuttons = 3

This means: Wait for 'NOT both buttons released' = 'One button clicked'.

I know this is undocumented stuff but _very_ useful. And I would love it
if Mr Pratt or someone else at ATARI could promise us that this feature
will stay. PLEASE Mr Pratt - do us a favour. The only other way I know
of something like selective mouse click waiting can be done is linking
into the mouse vectors and - whenever the right button is clicked -
pretending that it is indeed the left one. But this causes much trouble
everywhere, and it is not even completely legal - after all, you have
to use those VDI mouse movement vector exchange routines that are
reserved for AES use only.

----------------------------------------------------------------------
Claus Brod, Am Felsenkeller 2,			Things. Take. Time.
D-8772 Marktheidenfeld, West Germany		(Piet Hein)
csbrod@medusa.informatik.uni-erlangen.de
----------------------------------------------------------------------