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serial class (0, 2005-03-06)
serial class\SerialPort.h (2991, 1998-02-01)
serial class\SerialPort.cpp (17480, 1998-02-01)

In your software you only need to create an instance of the CSerialPort class and call InitPort. // the owner (CWnd) of the port (receives message) BOOL CSerialPort::InitPort(CWnd* pPortOwner, UINT portnr, // portnumber (1..4) UINT baud, // baudrate char parity, // parity UINT databits, // databits UINT stopbits, // stopbits DWORD dwCommEvents, // EV_RXCHAR, EV_CTS etc UINT writebuffersize) // size of the writebuffer The dwCommEvents flag can be used for communication with the owner of this class. The flags can be one of the following (or combined with |): WM_COMM_BREAK_DETECTED A break was detected on input. WM_COMM_CTS_DETECTED The CTS (clear-to-send) signal changed state. WM_COMM_DSR_DETECTED The DSR (data-set-ready) signal changed state. WM_COMM_ERR_DETECTED A line-status error occurred. Line-status errors are CE_FRAME, CE_OVERRUN, and CE_RXPARITY. WM_COMM_RING_DETECTED A ring indicator was detected. WM_COMM_RLSD_DETECTED The RLSD (receive-line-signal-detect) signal changed state. WM_COMM_RXCHAR A character was received and placed in the input buffer. WM_COMM_RXFLAG_DETECTED The event character was received and placed in the input buffer. Accept the first parameter all parameters are optional. The standard values are: portnr = 1 baud = 19200 parity = 'N' databits = 8, stopsbits = 1, dwCommEvents = EV_RXCHAR | EV_CTS, nBufferSize = 512); So the follwing code is enough to make communication possible: in the header of the owner: CSerialPort m_Serial; in the code: m_Serial.InitPort(this); m_Serial.StartMonitoring(); Then the tread that watches the port is started and all events on the port are send to the owner. The receive a character the owner needs a messageentry in the messagemap: BEGIN_MESSAGE_MAP(CCommtestDlg, CDialog) //{{AFX_MSG_MAP(CCommtestDlg) ON_MESSAGE(WM_COMM_RXCHAR, OnCommunication) ON_MESSAGE(WM_COMM_CTS_DETECTED, OnCTSDetected) //}}AFX_MSG_MAP END_MESSAGE_MAP() and they must be handled: LONG CCommtestDlg::OnCommunication(WPARAM ch, LPARAM port) { // do something with the received character return 0; }

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