B&B Electronics 232OPSDA manual initComPort, hComDev, BYTE modAddr, WORD lines, WORD

B232OPSDA_SetDigitalOutput

Purpose: This function sets the states of the digital output lines.

Syntax:	C:	BOOL B232OPSDA_SetDigitalOutput (WORD
		hComDev, BYTE modAddr, WORD lines, WORD
		states);
	Pascal:	function B232OPSDA_ReadDigitalOutput
		(hComDev : word; modAddr : byte; lines :
		word; states : word);
	BASIC:	FUNCTION B232OPSDAReadDigitalOutput
		(BYVAL hComDev AS INTEGER, BYVAL modAddr
		AS INTEGER, BYVAL lines AS INTEGER, BYVAL
		states AS INTEGER)
Remarks:	hComDev is the handle to a serial port where the
	module is connected. This is the value returned by
	initComPort. modAddr is the module address. This
	is always 30H (48 decimal) for 232OPSDA module.
	lines is a bit mask of the digital outputs to change. This
	will always be 01H (1 decimal) of the 232OPSDA,
	because it only has one digital output line. states is the
	new state of the digital outputs specified in lines. This
	can be either zero for OFF or non-zero for ON.
Returns:	FALSE (zero) if the function fails, otherwise it returns
	TRUE (non-zero).

deinitComPort

Purpose:	Removes the serial communications port driver.
Syntax:	C:	void deinitComPort (WORD hComDev);
	Pascal:	procedure deinitComPort (hComDev : word);
	BASIC:	sub deinitComPort (BYVAL hComDev AS
		INTEGER);
Remarks:	This function must be called after a serial
	communications port is installed with initComPort to
	remove the interrupt service routine that it installs.
Returns:	Nothing.
See Also:	initComPort

initComPort

Purpose: Installs a serial communications port driver.

Documentation Number 232OPSDA1397 Manual 21

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