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

	This routine allows the programmer to 'unfreeze' a window
	which was "frozen" by an earlier call to window_freeze_c.

	window_id	ID of desired window

	This function returns ACNET status values as follows:

	OK			success
	CBS_INVARG		invalid window ID was specified
	CBS_NO_WINDOW		window doesn't exist
	CBS_NOINIT		window is not frozen

	This function requires the following include files:

	cbslib_h, acnet_errors_h

	Related functions:

	window_freeze_c, window_is_frozen_c, window_enable_move_c,
	window_disable_move_c, window_enable_resize_c, window_disable_resize_c,
	window_enable_restack_c, window_disable_restack_c

	C/C++ usage:

	short	window_id;
	int	status;

	status = window_unfreeze_c(window_id);