> -----Original Message-----
> From: piclist-bounces@mit.edu On Behalf Of Dennis Crawley
> Sent: Wednesday, August 16, 2006 4:41 PM
>
> Ruben J=F6nsson <ruben@pp.sbbs.se> wrote:
> >
> >I have used the multimedia timer to get better resolution
> >than 55 ms. My case was transmitting on a half duplex RS485
> >line and I did the turnaround with the DTR signal.
> >Calculating the time it would take to transmitt and set the
> >multimedia timer to this time, when fired switched to
> >receiving with the DTR.
>
> Ok! I remember the use of APIs, for example this:
> Public Declare Sub Sleep Lib "kernel32" (ByVal dwMilliseconds As Long)
>    Sleep (1)
> This will work on XP as well.

IIRC, the Sleep API call uses the same low resolution timers as the standard
VB timer comtrol.

I think you need to use other API calls to get the multimedia timers. I have
had good success using the CCRP High Performance Timer Object available at:
http://ccrp.mvps.org/index.html?controls/ccrptimer6.htm

Hope this helps,
Paul


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