public PianoKeyWPF(PianoControlWPF.KeyType keyType) { this.keyType = keyType; whiteKeyOnBrush = new LinearGradientBrush(); whiteKeyOnBrush.GradientStops.Add(new GradientStop(Colors.White, 0.0)); whiteKeyOnBrush.GradientStops.Add(new GradientStop(Color.FromArgb(0xFF, 0x20, 0x20, 0x20), 1.0)); blackKeyOnBrush = new LinearGradientBrush(); blackKeyOnBrush.GradientStops.Add(new GradientStop(Colors.LightGray, 0.0)); blackKeyOnBrush.GradientStops.Add(new GradientStop(Colors.Black, 1.0)); InitializeComponent(); }