WebExpress.TabView.OnFullscreenModeChange C# (CSharp) Метод

        public void OnFullscreenModeChange(IWebBrowser browserControl, IBrowser browser, bool fullscreen)
        {
            Dispatcher.BeginInvoke((Action) (() =>
            {
                if (fullscreen == true)
                {
                    Panel.Visibility = Visibility.Hidden;
                    WebView.Margin = new Thickness(0);
                }
                else
                {
                    Panel.Visibility = Visibility.Visible;
                    WebView.Margin = new Thickness(0, 42, 0, 0);
                }
            }));
        }