using System;
using System.Windows;
using System.Windows.Input;
public class MainClass : Window
{
[STAThread]
public static void Main()
{
Application app = new Application();
app.Run(new MainClass());
}
protected override void OnTextInput(TextCompositionEventArgs args)
{
base.OnTextInput(args);
if (args.Text.Length > 0 && !Char.IsControl(args.Text[0]))
Title += args.Text;
}
}