diff --git a/Demo.WindowsPresentation/CustomMarkers/Cross.xaml.cs b/Demo.WindowsPresentation/CustomMarkers/Cross.xaml.cs
new file mode 100644
--- /dev/null
+++ b/Demo.WindowsPresentation/CustomMarkers/Cross.xaml.cs
@@ -0,0 +1,16 @@
+using System.Windows.Controls;
+
+namespace Demo.WindowsPresentation.CustomMarkers
+{
+   /// <summary>
+   /// Interaction logic for Cross.xaml
+   /// </summary>
+   public partial class Cross : UserControl
+   {
+      public Cross()
+      {
+         InitializeComponent();
+         this.IsHitTestVisible = false;
+      }
+   }
+}