window_has_feature(_c)

	status.i4.v = window_has_feature_c(window_id.i2.v, feature.i4.v)

	This routine returns whether or not the indicated window has
	the requested feature.

	window_id	ID of desired window
	feature		requested feature
			(WMNGR_HAS_BORDER -> window border,
			 WMNGR_HAS_TITLE -> window title,
			 WMNGR_HAS_SCROLLBAR -> vertical scroll bar,
			 WMNGR_HAS_SCROLLSTATUS -> scroll status display,
			 WMNGR_HAS_HORZ_SCROLLBAR -> horizontal scroll bar,
			 WMNGR_HAS_MENUBAR -> menu bar,
			 WMNGR_HAS_HANDLE -> handle)

	This function returns status values as follows:

	CBS_INVARG		invalid window ID was specified or invalid
				feature was requested
	CBS_NO_WINDOW		window doesn't exist
	CBS_MEMFAIL		dynamic memory allocation failure
	TRUE			window has requested feature
	FALSE			window does not have requested feature

	This function requires the following include files:

	cnsparam_h, cbslib_h, acnet_errors_h

	Related functions:

	window_query_scroll(_c), window_title(_c), intro_tv_windows

	C/C++ usage:

	short	window_id;
	int	status;
	int	feature = WMNGR_HAS_SCROLLBAR;

	status = window_has_feature_c(window_id,feature);