void	CommPak::CheckRxTmr()
{
	char buff[65]; // Last byte reserved for 0 terminator
	
	while (CommPort.ReadDataWaiting() > 16) {
		int bytes_read = CommPort.ReadData(buff, 64);
		buff[bytes_read] = 0;
		esText.Insert(esText.GetLength(), buff);		
	}
}

void ReadSerialData(int packet_size, DocEdit *edit) {
	char buff[65]; // Last byte reserved for 0 terminator
	
	for (;;) {
		while (CommPort.ReadDataWaiting() > 16) {
			int bytes_read = CommPort.ReadData(buff, 64);
			buff[bytes_read] = 0;
			{ 
				GUILock _; // This locks the GUI thread (until end of scope) 
						   // so that we can safely update the Ctrl
				edit->Insert(edit->GetLength(), buff);		
			}
		}
	}
}

CoWork().Do(THISBACK2(ReadSerialData(16, &esText));