status.i4.v = wn_switch_enable_c(switch_id.i4.v)

	This routine will enable a switch which was disabled by an earlier
	call to wn_switch_disable_c.

	switch_id	ID of desired switch
			(returned by prior call to wn_switch_create_c)
			(Note:  If a negated window ID is passed, all switches
			 in that window will be enabled.)

	This function returns ACNET status values as follows:

	CBS_NO_SUCH		switch or window does not exist
	otherwise		previous enable/disable state

	This function requires the following include files:

	cbslib_h, acnet_errors_h

	Related functions:

	wn_switch_disable_c, wn_switch_create_c, wn_switch_delete_c,
	wn_switch_window_delete_c, wn_switch_read_c, wn_switch_pressed
	wn_switch_set_state_c, wn_switch_relabel_c, wn_switch_redraw_c,

	C/C++ usage:

	int	status;
	int	switch_id;

	status = wn_switch_enable_c(switch_id);