public static extern bool FDIIsCabinet( int hf, ref FDICABINETINFO pfdici);
public static extern bool FDIIsCabinet(HFDI hfdi, IntPtr hf, out FDICABINETINFO pfdici);
public static extern bool FDIIsCabinet( FdiHandle hfdi, IntPtr hf, ref FDICABINETINFO pfdici);