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Article #16421EXACT screen refresh rate, and other items
From: duc
Date: Thu, 28 May 1987 22:06
Date: Thu, 28 May 1987 22:06
15 lines
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1247 bytes
Everywhere in Inside Mac I see that the Mac redraws the screen every 60th of a second (60 Hz). Now I read in an article describing PsychLib from Rice University that the screen refresh rate is 60.15Hz. Does anyone know where this figure come from? Are they wrong? Is there an authoritative source of information on Mac hardware, to tell you things like how long it takes for a keystroke to be read (using GetKeys, not GetNextEvent), how come Button() looks for posted mouse events, and not look at the low memory global (MBState) (does it?? does MBState only get updated every 60th of a second? In sum, how come Button() only returns a TRUE at tick boundaries? ) I'm interested in answers in the millisecond range. -dan costin
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Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: arc1-ca.pugleaf.net!utzoo!utgpu!water!watmath!clyde!cbosgd!ucbvax!husc6!wjh12!duc From: duc@wjh12.UUCP Newsgroups: comp.sys.mac Subject: EXACT screen refresh rate, and other items Message-ID: <71@wjh12.HARVARD.EDU> Date: Thu, 28-May-87 18:06:08 EDT Article-I.D.: wjh12.71 Posted: Thu May 28 18:06:08 1987 Date-Received: Sat, 30-May-87 04:58:08 EDT Reply-To: duc@wjh12.UUCP (Dan Costin) Organization: Harvard University, Cambridge MA Lines: 15