using System; using System.Windows; using System.Windows.Input; class MainClass { [STAThread] public static void Main() { Application app = new Application(); Window win = new Window(); win.Title = "Handle An Event"; win.MouseDown += WindowOnMouseDown; app.Run(win); } static void WindowOnMouseDown(object sender, MouseButtonEventArgs args) { Window win = sender as Window; string strMessage =args.ChangedButton +":"+ args.GetPosition(win); MessageBox.Show(strMessage, win.Title); } }