public HistogramTestHarness() { InitializeComponent(); #if !WPF image.ImageOpened += Image_ImageOpened; #endif grid.MouseLeftButtonDown += image_MouseLeftButtonDown; grid.MouseLeftButtonUp += Grid_MouseLeftButtonUp; Test.Click += Test_Click; var throttledEvent = new ThrottledMouseMoveEvent(image); throttledEvent.ThrottledMouseMove += new MouseEventHandler(ThrottledEvent_ThrottledMouseMove); CompositionTarget.Rendering += new EventHandler(CompositionTarget_Rendering); }