was_pressed.i4.v = switch_pressed([last_pressed.i4.r])

	This routine will return a value of TRUE if a switch has been
	pressed since the last time this routine was called.

	[last_pressed]	ID of last switch pressed
			(valid only if a value of TRUE is returned)
			(returned by prior call to switch_create_c or

	This function returns status values as follows:

	TRUE			a switch has been pressed
	FALSE			no switch has been pressed

	This function requires the following include files:

	cnsparam_h, cbslib_h

	Related functions:

	switch_read_c, switch_create_c, switch_create_radio_c,
	switch_set_state_c, switch_enable_c, switch_disable_c,
	switch_text_to_id_c, switch_get_info_c, wn_switch_pressed

	C/C++ usage:

	int	was_pressed;
	int	last_pressed_id;

	was_pressed = switch_pressed(&last_pressed_id);