How do keep track of window resizing and max/min using UI Automation in visual Studio.

/// <summary>
/// Interaction logic for MainWindow.xaml
/// </summary>
public partial class MainWindow : Window
{
    public MainWindow()
    {
        InitializeComponent();

        this.StateChanged += new EventHandler(MainWindow_StateChanged);
    }

    void MainWindow_StateChanged(object sender, EventArgs e)
    {
        MessageBox.Show(this.WindowState.ToString());
    }
}