Comport?

Kode 

#include <windows.h>
#include <iostream>

void SetTimeOut(HANDLE Port, int MSec)
{
   COMMTIMEOUTS commtimeouts;
   GetCommTimeouts(Port, &commtimeouts);
   commtimeouts.ReadIntervalTimeout = MSec;
   commtimeouts.ReadTotalTimeoutMultiplier = 1;
   commtimeouts.ReadTotalTimeoutConstant = MSec;
   SetCommTimeouts(Port, &commtimeouts);
}

int main()
{
   DCB dcb;
   HANDLE ComPort = CreateFile("COM1", GENERIC_READ | GENERIC_WRITE, 0, 0, OPEN_EXISTING, 0, 0);
   GetCommState(ComPort, &dcb);
   dcb.BaudRate = 115200;
   dcb.ByteSize = 8;
   dcb.fRtsControl = RTS_CONTROL_ENABLE;
   dcb.fErrorChar = TRUE;
   dcb.fParity = TRUE;
   dcb.Parity = ODDPARITY;
   dcb.fAbortOnError = TRUE;
   dcb.fOutxCtsFlow = 1;
   SetCommState(ComPort, &dcb);
   SetTimeOut(ComPort, 50);
   while(1)
   {
      char Buffer;
      DWORD Length = 0;
      DWORD ErrorType = 0;

      ReadFile(ComPort, &Buffer, 1, &Length, 0);
      ClearCommError(ComPort, &ErrorType, 0);
      if(Length || ErrorType)
      {
         std::cout << ".";
      }
   }
}