using System.Windows; namespace MSFSPopoutPanelManager.MainApp.CustomControl { public delegate void ValueChangedEventHandler(object sender, ValueChangedEventArgs e); public class ValueChangedEventArgs : RoutedEventArgs { public ValueChangedEventArgs(RoutedEvent routedEvent, object source, double oldValue, double newValue) : base(routedEvent, source) { OldValue = oldValue; NewValue = newValue; } public double OldValue { get; private set; } public double NewValue { get; private set; } } }