status.i4.v = window_enable_restack_c(window_id.i2.v)

	This routine allows the programmer to enable automatic
	pushing and popping of a window by the window_intype
	routine.  Automatic restacking is enabled when a window is

	window_id	window ID

	This function returns status values as follows:

	CBS_INVARG		background or invalid window ID was specified
	CBS_NO_WINDOW		window doesn't exist
	CBS_NOTENB		can't enable restacking because window has
				been frozen by a call to window_freeze_c
	CBS_MEMFAIL		dynamic memory allocation failure
	TRUE			restacking was previously enabled
	FALSE			restacking was previously disabled

	This function requires the following include files:

	cnsparam_h, cbslib_h, acnet_errors_h

	Related functions:

	window_disable_resize_c, window_enable_interrupts,
	window_disable_interrupts, window_intype, window_move_enable,
	window_move_disable, window_construct(_c), window_freeze_c,
	window_unfreeze_c, window_disable_occluded_ints_c,
	window_enable_occluded_ints_c, intro_tv_windows

	C/C++ usage:

	short	window_id;
	int	status;

	status = window_enable_restack_c(window_id);