// Main thread for processing incoming MIDI events
   

DWORD CInputPort::WaitForEvent(LPVOID lpv)
{

  HRESULT hr;
  REFERENCE_TIME rt;	// System time when the event is received
  DWORD dwGroup;		// Channel group
  DWORD dwcb,dwMsg;	// Byte counter, Midi message 
  BYTE *pb;		// Pointer to the data

	CInputPort *ptrPort=(CInputPort*)(lpv);

 	while(ptrPort->m_ProcessActive)	// Check for active
	{
		WaitForMultipleObjects(1,&ptrPort->m_hEvent, FALSE, INFINITE); // Waits for an event

		while (ptrPort->m_ProcessActive)
		{
			hr = ptrPort->ReadBuffer();	// Read incoming midi messages

			if (hr == S_FALSE)
			{
				break;  // No more messages to read into the buffer
			} 

			ptrPort->ResetBuffer();// Set the buffer pointer to the start
      

			while (ptrPort->m_ProcessActive) 
			{

				hr = ptrPort->GetMidiEvent(&rt,&dwGroup,&dwcb,&pb); // Extract midi data

				if (hr == S_OK)
				{

					if (dwcb>MIDI_STRUCTURED)	// In case it is SysEx data
						ptrPort->m_pReceiver->RecvMidiMsg(rt,dwGroup,dwcb,pb);

					else
					{
						CopyMemory(&dwMsg,pb,dwcb); // Structured data (Standard format) 
						ptrPort->m_pReceiver->RecvMidiMsg(rt,dwGroup,dwMsg);
					}

					// pb points to the data structure for the message, and

				}	// you can do anything that you want with it
				else if (hr == S_FALSE)
				{
					break;  // No more messages in the buffer
				}
			}  // Done with the buffer

 		}  // Done reading pending events
	}

 	SetEvent(ptrPort->m_hTerminationEvent); 

	return 0;

}