private static void OnBarHeightScalingChanged(DependencyObject o, DependencyPropertyChangedEventArgs e) { SpectrumAnalyzer spectrumAnalyzer = o as SpectrumAnalyzer; if (spectrumAnalyzer != null) { spectrumAnalyzer.OnBarHeightScalingChanged((BarHeightScalingStyles)e.OldValue, (BarHeightScalingStyles)e.NewValue); } }