status.i4.v = select_field_enable_c(window_id.i2.v, select_id.i4.v)

	This routine will enable a select field which was disabled by an
	earlier call to select_field_disable_c.

	window_id	ID of desired window (returned from prior call to
	select_id	ID of selection field type (returned from a prior
			call to select_field_register_c)
			(Note: If a value of WMNGR_ALL_TYPES is passed,
			 all select fields in that window will be enabled.)

	This function returns ACNET status values as follows:

	CBS_NO_SUCH		select field does not exist
	otherwise		previous enable/disable state

	This function requires the following include files:

	cbslib_h, acnet_errors_h

	Related functions:

	select_field_disable_c, select_field_init_c, select_field_register_c,
	select_field_update_c, select_field_read_c, select_field_set_c,
	select_field_set_by_value_c, select_field_delete_c,
	select_field_text_to_id_c, select_field_display_info_c

	C/C++ usage:

	short	window_id;
	int	status;
	int	select_id;

	status = select_field_enable_c(window_id,select_id);