Winform Boy in a WPF World - Window Handle

I was fiddling with some WPF stuff the other day and I needed the handle to the form.  Windows in WPF do not have a property to get this like in WinForms, though there is a simple solution.  I have bundled the solution into a property to make it similar to WinForms(It uses my lazy loader class):

     public partial class HandleWindow : Window
    {
        public HandleWindow()
        {
            InitializeComponent();
            _handle = new LazyLoader<IntPtr>(delegate { return new WindowInteropHelper(this).Handle; });
        }

        #region Handle
        private LazyLoader<IntPtr> _handle;
        protected IntPtr Handle
        {
            get
            {
                return _handle.Value;
            }
        }
        #endregion
    }