Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!csd4.milw.wisc.edu!uxc!uxc.cso.uiuc.edu!ux1.cso.uiuc.edu!uxf.cso.uiuc.edu!rmf517
From: rmf517@uxf.cso.uiuc.edu
Newsgroups: comp.sys.mac.programmer
Subject: Re: mac programming question
Message-ID: <1234600023@uxf.cso.uiuc.edu>
Date: 19 Apr 89 17:06:00 GMT
Lines: 16
Nf-ID: #R:<UYFX8Hy00Xo=Q11UwL@andrew.cmu.e:-35:uxf.cso.uiuc.edu:1234600023:000:712
Nf-From: uxf.cso.uiuc.edu!rmf517    Apr 19 12:06:00 1989


> > ... measure the time interval between a the appearance of a display on the
> > screen and when the viewer presses a key.  This time interval must be
> > measured
> > within 1/100th of a second.
> 
> Take a look at the Toolbox Event manager in Inside Macintosh.  The
> event record that is returned includes a field, 'when', that tells
> when the event happened in 60ths of a second since the computer was
> turned on.  Keypresses are returned as events.
 
Take a look at the Time Manager Routines in IM IV.  It sounds like you could
have a function called every 1/100 of a sec. and check for a KeyDown.
Then you could get better resoultion then 60th of a sec.

Bob Frank - struggling undergrad @ the UofI