【转】WPF 从FlowDocument中找到Hyperlink

原文地址：How can I get a FlowDocument Hyperlink to launch browser and go to URL in a WPF app?

 #region Activate Hyperlinks in the Rich Text box
        //http://stackoverflow.com/questions/5465667/handle-all-hyperlinks-mouseenter-event-in-a-loaded-loose-flowdocument
        void SubscribeToAllHyperlinks(FlowDocument flowDocument)
        {
            var hyperlinks = GetVisuals(flowDocument).OfType<Hyperlink>();
            foreach (var link in hyperlinks)
                link.RequestNavigate += new System.Windows.Navigation.RequestNavigateEventHandler(link_RequestNavigate);
        }

        public static IEnumerable<DependencyObject> GetVisuals(DependencyObject root)
        {
            foreach (var child in LogicalTreeHelper.GetChildren(root).OfType<DependencyObject>())
            {
                yield return child;
                foreach (var descendants in GetVisuals(child))
                    yield return descendants;
            }
        }

        void link_RequestNavigate(object sender, System.Windows.Navigation.RequestNavigateEventArgs e)
        {
            //http://stackoverflow.com/questions/2288999/how-can-i-get-a-flowdocument-hyperlink-to-launch-browser-and-go-to-url-in-a-wpf
            Process.Start(new ProcessStartInfo(e.Uri.AbsoluteUri));
            e.Handled = true;
        }
        #endregion Activate Hyperlinks in the Rich Text box