public static extern void DrawingWand_PathArcRel(IntPtr Instance, double x, double y, double radiusX, double radiusY, double rotationX, [MarshalAs(UnmanagedType.Bool)] bool useLargeArc, [MarshalAs(UnmanagedType.Bool)] bool useSweep, out IntPtr exception); [DllImport(NativeLibrary.X64Name, CallingConvention = CallingConvention.Cdecl)]