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Com port priority

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jerehart

Programmer
Jun 10, 1999
61
US
Hey I am running a simulator in Visual C++, on NT 4.0 It was designed to use the com port. The bad thing is that timing is an issue and we lose when the mouse is used.

Is there any one who knows how to lock out the com port? A semapohore would be best, since it is only needed in one critical, but maybe a priority inversion or anything to lock out us being preempted to use the com port.
 
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