void CommOpen (int Port, int Baud, int Parity, int Flow);
DWORD CommRead (char *Buffer, DWORD Size);
DWORD CommReadLine (char *Buffer, DWORD Size);
DWORD CommReadUntil (char *Buffer, DWORD Size, char Term, DWORD Tick);
DWORD CommQueue (void);
void CommTimeout (DWORD Interval, DWORD Multiplier, DWORD Constant);
void CommWrite (char *Buffer, DWORD Size);
void CommClose (void);
void CommShowStatus (void);
void CommShowDcb (DCB *Dcb);