wn_data_recall

	status.i4.v = wn_data_recall(points.r4p.r, num_points.i4.r)

	This routine recalls the saved data set for the active graphic window.
	The calling routine is responsible for freeing the returned data
	buffer.

	points		returned buffer of x and y values in x, y order
	num_points	number of x, y pairs in the returned data set

	This function returns ACNET status values as follows:

	OK			success
	CBS_NOSETUP		an active window has not been established
				or no data has been saved
	CBS_MEMFAIL		failed in allocating dynamic memory

	This function requires the following include files:

	cbslib_h, acnet_errors_h

	Related functions:

	wn_data_save(_c), wn_data_set_cut_c, wn_data_mean, wn_data_extrema,
	wn_data_query, wn_data_polyfit_c, wn_data_fft_c, intro_graphics_windows

	C/C++ usage:

	int	status;
	int	num_points;
	float	*points;

	status = wn_data_recall(&points,&num_points);