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From: Lawson.English@p88.f15.n300.z1.fidonet.org (Lawson English)
Newsgroups: comp.sys.mac.programmer
Subject: Re: Animation
Message-ID: <1961.27B4BFB4@stjhmc.fidonet.org>
Date: 8 Feb 91 16:48:15 GMT
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Baudoin Raoult writes in a message to All

BR> The simplest way is to use TickCount, as the tick counter is 
BR> updated every 60th of second, each time the video spot starts 
BR> to update new screen. So just write: 
BR>  tmp := TickCount;  while tmp=Tickcount do { nothing } ;  CopyBits(.....)

To make sure that you get the most accurate reading (and the longest time in
which to do your drawing) use GetTrapAddress to bypass the Trap Dispatcher and
jump directly to TickCount. Otherwise, you have 100+ CPU cycles of overhead
that you are wasting. This might not be much, but it could change the flicker
if your drawing is small enough.


Lawson
 

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