window_handle_to_id

	window_id.i4.v = window_handle_to_id(handle.i1a.r)

	This routine returns the window ID for the window having a
	given handle.

	handle		null terminated handle string
			(up to WMNGR_MAX_HANDLE_LEN characters)

	This function returns status values as follows:

	CBS_MEMFAIL		dynamic memory allocation failure
	CBS_INVARG		handle string is too int
	CBS_NO_WINDOW		window doesn't exist
	otherwise		window ID

	This function requires the following include files:

	cbslib_h, acnet_errors_h

	Related functions:

	window_set_handle_c, window_read_handle_c, window_construct(_c),
	intro_tv_windows

	C/C++ usage:

	static const char	handle[] = "Handle";
	int	window_id;

	window_id = window_handle_to_id(handle);