WaitForSingleObject

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Hi,

I'm developing and application that uses a DAQ(Digital Acquisition) Card on Windows.
In the sample examples there is this piece of code:

IntThread(void* pArg)
{
  while (1) {
       if (WaitForSingleObject(hEvent[0], INFINITE) == WAIT_OBJECT_0) {
         int_count++;
         ResetEvent(hEvent[0]);
         InvalidateRect(hMainWnd, NULL, FALSE);
           }
  }
  _endthread();
}

IntThread(void* pArg)
{
  while (1) {
       if (WaitForSingleObject(hEvent[0], INFINITE) == WAIT_OBJECT_0) {
         int_count++;
         ResetEvent(hEvent[0]);
         InvalidateRect(hMainWnd, NULL, FALSE);
           }
  }
  _endthread();
}

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I don't understand how to reimplement the "WaitForSingleObject" function.
As I understand, the DAQ card driver sends an event that is catched on this function, so maybe is the only way to get the driver event processed?

Thanks,