Q: Is the time stamp for an morphic event set by OS?

Peter Crowther Peter.Crowther at melandra.com
Wed May 2 16:48:02 UTC 2001


> From: Dan Ingalls [mailto:Dan.Ingalls at disney.com]
> On Macs, I believe mouse events are polled by the hardware 
> every 16ms, and this will limit your resolution as Mark says.

Quick calculation: 2400 bits/sec (typical mouse, I think), 10 bits/byte inc.
framing, 3 bytes/sample = 60 samples/sec or >16 ms between samples, limited
by the bit rate.

I wrote a driver for a tablet that used the same protocol, so I'm pretty
certain of these values.

		- Peter





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