wn_cursor_position_c

	status.i4.v = wn_cursor_position_c(x.r4.r, y.r4.r [,window_id.i4.v])

	This routine returns the present coordinates of the graphic cursor
	relative to a particular window.

	x, y		returned world coordinates of present cursor position
	[window_id]	reference window ID
			(default is CLIB_DEFAULT_ARG which will result in
			 the active window being used)

	This function returns ACNET status values as follows:

	OK			success
	CBS_NOINIT		active window requested but no active
				window established
	CBS_INVID		requested window does not exist
	CBS_NOT_IN_WINDOW	cursor is not in graphic window

	This function requires the following include files:

	cbslib_h, acnet_errors_h

	Related functions:

	wn_cursor_update, wn_cursor_pixel_position_c, wn_cursor_update_pixel,
	wn_cursor_init(_c), wn_cursor_init_pixel_c, wn_cursor_disable,
	wn_set_cursor_type_c, wn_cursor_is_active, wn_active(_c),
	intro_graphics_windows

	C/C++ usage:

	int	status;
	int	window_id = CLIB_DEFAULT_ARG;
	float	x;
	float	y;

	status = wn_cursor_position_c(&x,&y,window_id);