Initializes the port parameters

Syntax COM_INIT(<nComPort>,[<nBaudRate>],[<cParity>], [<nDataLength>],[<nStopBits>]) --> lInitialized Arguments <nComPort> Designates the port (1 to N) that is initialized. <nBaudRate> Designates the selected baud rate for the port. Settings of 300, 600, 1200, 2400, 4800, 9600 and 19200 baud are possible. The default value is 300 baud. <cParity> Designates parity in the following form: (E)ven, (O)dd, (M)ark, (S)pace, or (N)one. The default value is (N)one. <nDataLength> Designates the data length; seven or eight bits are possible. The default value is eight bits. <nStopBits> Designates the number of stop bits, one or two. The default value is one stop bit. Returns If the com port is initialized successfully, the function returns .T.. Description In order to use the serial port after you open it, four operating parameters must have been passed to this function. These operating parameters are the transmission speed (baud rate), the data length, the parity, and the number of stop bits. Today most bulletin boards use the configuration "300 - 9600 baud, 8N1". This configuration means eight data bits, no parity, and one stop bit. What is important is that all these parameters can be changed while the port is closed. Neither the data buffer or the modem status register (DTR, etc.) are affected. Notes The port must have been opened previously. It is impossible to initialize a port prior to opening it. If any or all of the four operating parameters are not designated, or are designated incorrectly, the standard arguments of 300 baud, no parity, eight data bits, and one stop bit is used. Examples Open and initialize a port: nBuff_size := 4000 // 4000 character buffer lComOk := COM_OPEN(1, nBuff_size) // Open port IF lComOk * The port is open, now it is to be initialized with 1200 * baud, no parity, eight data bits, and one stop bit. lInitOk := COM_INIT(1, 1200, "N", 8, 1) IF .NOT. lInitOk ? "Port cannot be initialized !" ENDIF ENDIF You can also omit the last three parameters in the above example because they correspond to the default settings: lInitOk := COM_INIT(1, 1200) // Init. with 1200, N, 8, 1