public static void RubberBandStretcher_SetFrequencyCutoff(IntPtr rbs, int n, float f) { if (IntPtr.Size == 8) { RubberBandNativeMethodsx64.RubberBandStretcher_SetFrequencyCutoff(rbs, n, f); } else { RubberBandNativeMethodsWin32.RubberBandStretcher_SetFrequencyCutoff(rbs, n, f); } }