where.i4.v = in_window_c(window_id.i2.v [,ret_occluded.i4.v])

	This routine determines if the TV cursor was in the specified
	window the last time window_intype was called.

	window_id	window ID (use WMNGR_BACKGROUND for background window)
	[ret_occluded]	flag to control return of occluded window information
			(TRUE -> return information for occluded windows,
			 FALSE -> return WMNGR_OUTSIDE for occluded windows

	This function returns status values as follows:

	WMNGR_INSIDE		inside the borders of the window
	WMNGR_BORDER		on the window border (bordered windows only)
	WMNGR_OUTSIDE		outside of the window

	This function requires the following include files:

	cnsparam_h, cbslib_h

	Related functions:

	in_window_interior_c, in_window_field(_c), in_window_box(_c),
	binfld(_c), binbox(_c), in_window_line(_c), window_intype,
	window_intype_put_data_c, intro_tv_windows

	C/C++ usage:

	short	window_id;
	int	where;
	int	ret_occluded = FALSE;

	where = in_window_c(window_id,ret_occluded);