//File:Window.xaml.vb Imports System Imports System.Windows Imports System.Diagnostics Namespace WpfApplication1 Public Partial Class Window1 Inherits System.Windows.Window Public Sub New() InitializeComponent() AddHandler myEllipse.MouseDown, AddressOf MouseDownEllipse AddHandler myEllipse.PreviewMouseDown, AddressOf PreviewMouseDownEllipse End Sub Private Sub PreviewMouseDownEllipse(sender As Object, e As RoutedEventArgs) Debug.WriteLine("PreviewMouseDownButton") End Sub Private Sub MouseDownEllipse(sender As Object, e As RoutedEventArgs) Debug.WriteLine("MouseDownButton") End Sub End Class End Namespace