<CategoryAttribute("Common Properties")>
Public Property ActiveWindowIndex As Integer

Dim instance As UXDesktop
Dim value As Integer
 
instance.ActiveWindowIndex = value
 
value = instance.ActiveWindowIndex

[CategoryAttribute("Common Properties")]
public int ActiveWindowIndex {get; set;}

public read-write property ActiveWindowIndex: Integer; 

CategoryAttribute("Common Properties")
public function get,set ActiveWindowIndex : int

[CategoryAttribute("Common Properties")]
public: __property int get_ActiveWindowIndex();
public: __property void set_ActiveWindowIndex( 
   int value
);

[CategoryAttribute("Common Properties")]
public:
property int ActiveWindowIndex {
   int get();
   void set (    int value);
}

private void UXButton_Click(object sender, RoutedEventArgs e)
{
    MessageBox.Show(desktop.ActiveWindowIndex.ToString());
}