title: ActiViz .NET LeftButtonReleaseEvent: Where did i click
body: <p>I'm working with ActiViz .NET (VTK) and have a small problem.</p>
  
  <p>When I register a event (for ex. the LeftButtonReleaseEvt), I can't find out where on the RenderWindowControl I clicked.  The event is called.</p>
  
  <pre><code>        ...       
          rwcVtk.RenderWindow.GetInteractor().LeftButtonPressEvt += new vtkObject.vtkObjectEventHandler(RenderWindow_LeftButtonReleaseEvt);            
      }
  
      void RenderWindow_LeftButtonReleaseEvt(vtkObject sender, vtkObjectEventArgs e)
      {
          //TODO: Where did i click?
      }
  </code></pre>
  
  <p>Can somebody help me?
  There isn't much documentation on that out there I think.</p>