BOOL WINAPI ClearCommError	(	HANDLE	handle,
		LPDWORD	errors,
		LPCOMSTAT	lpStat
	)
Definition at line 682 of file comm.c.
{
    SERIAL_STATUS       ss;
    DWORD dwBytesReturned;

    if (!DeviceIoControl(handle, IOCTL_SERIAL_GET_COMMSTATUS, NULL, 0,
                         &ss, sizeof(ss), &dwBytesReturned, NULL))
        return FALSE;

    if (errors)
    {
        *errors = 0;
        if (ss.Errors & SERIAL_ERROR_BREAK)             *errors |= CE_BREAK;
        if (ss.Errors & SERIAL_ERROR_FRAMING)           *errors |= CE_FRAME;
        if (ss.Errors & SERIAL_ERROR_OVERRUN)           *errors |= CE_OVERRUN;
        if (ss.Errors & SERIAL_ERROR_QUEUEOVERRUN)      *errors |= CE_RXOVER;
        if (ss.Errors & SERIAL_ERROR_PARITY)            *errors |= CE_RXPARITY;
    }
 
    if (lpStat)
    {
        memset(lpStat, 0, sizeof(*lpStat));

        if (ss.HoldReasons & SERIAL_TX_WAITING_FOR_CTS)         lpStat->fCtsHold = TRUE;
        if (ss.HoldReasons & SERIAL_TX_WAITING_FOR_DSR)         lpStat->fDsrHold = TRUE;
        if (ss.HoldReasons & SERIAL_TX_WAITING_FOR_DCD)         lpStat->fRlsdHold = TRUE;
        if (ss.HoldReasons & SERIAL_TX_WAITING_FOR_XON)         lpStat->fXoffHold = TRUE;
        if (ss.HoldReasons & SERIAL_TX_WAITING_XOFF_SENT)       lpStat->fXoffSent = TRUE;
        if (ss.EofReceived)                                     lpStat->fEof = TRUE;
        if (ss.WaitForImmediate)                                lpStat->fTxim = TRUE;
        lpStat->cbInQue = ss.AmountInInQueue;
        lpStat->cbOutQue = ss.AmountInOutQueue;
    }
    return TRUE;
}
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