Public Property ActiveWindow As IWindow

Dim instance As UXDesktop
Dim value As IWindow
 
instance.ActiveWindow = value
 
value = instance.ActiveWindow

public IWindow ActiveWindow {get; set;}

public read-write property ActiveWindow: IWindow; 

public function get,set ActiveWindow : IWindow

public: __property IWindow* get_ActiveWindow();
public: __property void set_ActiveWindow( 
   IWindow* value
);

public:
property IWindow^ ActiveWindow {
   IWindow^ get();
   void set (    IWindow^ value);
}

private void UXButton_Click(object sender, RoutedEventArgs e)
{
    MessageBox.Show((desktop.ActiveWindow as UXWindow).Header.ToString());
}