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I am accessing multiple serial ports using CreateFile to get a handle to the port and then using WriteFile to output strings to equipment that my program is controlling. I would like to know how to trigger an event when there is data at the serial port for ReadFile to retrieve. 
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I am accessing multiple serial ports using CreateFile to get a handle to the port and then using WriteFile to output strings to equipment that my program is controlling. I would like to know how to trigger an event when there is data at the serial port for ReadFile to retrieve. 

Event trigger for ReadFile?

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