Custom context menu for WPF WebBrowser Control

Question

Hi I need to create a custom context menu for a web browser control in wpf. Here is my xaml code which is not working:

Answer 1

I've taken the solution provided by @MartinHoly and i've encountered the problem: to context menu can be popped up only once (if you right-click on the scrollbar, for example, or select a custom menu item - next time you right-click the WebBrowser brings the standard IE menu). I have made the following workaround: The xaml:

The code behind:

using System.Windows.Controls;
using MSHTML;

namespace WPFCustomContextMenuInWebBrowser {
  public partial class MainWindow {

    public MainWindow() 
    {
      InitializeComponent();
      Browser.LoadCompleted += BrowserOnLoadCompleted;
    }

    void BrowserOnLoadCompleted(object sender, NavigationEventArgs navigationEventArgs)
    {
        var mshtmlDoc = Browser.Document as HTMLDocument;
        if (mshtmlDoc == null) return;
                    var doc2event = mshtmlDoc as HTMLDocumentEvents2_Event;
        if (doc2event != null)
        {               
            doc2event.onfocusin += FocusInContextMenu;
        }            
    }

    bool OpenContextMenu(IHTMLEventObj pEvtObj)
    {
        WbShowContextMenu(pEvtObj as ContextMenu);
        return false;
    }

    void FocusInContextMenu(IHTMLEventObj pevtobj)
    {
        var mshtmlDoc = Browser.Document as HTMLDocument;
        var doc2event = mshtmlDoc as HTMLDocumentEvents2_Event;
        if (doc2event != null)
        {
            doc2event.oncontextmenu -= OpenContextMenu;
            doc2event.onfocusin -= FocusInContextMenu;
            doc2event.oncontextmenu += OpenContextMenu;
            doc2event.onfocusin += FocusInContextMenu;
        }
    }

    public void WbShowContextMenu() 
    {
      ContextMenu cm = FindResource("MnuCustom") as ContextMenu;
      if (cm == null) return;
      cm.PlacementTarget = Browser;
      cm.IsOpen = true;
    }
  }
}