private static void ContinueTiltEffect(FrameworkElement element, ManipulationDeltaEventArgs e) { FrameworkElement frameworkElement = e.ManipulationContainer as FrameworkElement; if (frameworkElement == null || element == null) { return; } Point point = frameworkElement.TransformToVisual((UIElement)element).Transform(e.ManipulationOrigin); if (!new Rect(0.0, 0.0, TiltEffect.currentTiltElement.ActualWidth, TiltEffect.currentTiltElement.ActualHeight).Contains(point)) { TiltEffect.PauseTiltEffect(); } else { TiltEffect.ApplyTiltEffect(TiltEffect.currentTiltElement, point, TiltEffect.currentTiltElementCenter); } }
private static void ContinueTiltEffect(FrameworkElement element, ManipulationDeltaEventArgs e) { FrameworkElement manipulationContainer = e.ManipulationContainer as FrameworkElement; if (manipulationContainer == null || element == null) { return; } Point touchPoint = ((UIElement)manipulationContainer).TransformToVisual((UIElement)element).Transform(e.ManipulationOrigin); Rect rect = new Rect(0.0, 0.0, TiltEffect.currentTiltElement.ActualWidth, TiltEffect.currentTiltElement.ActualHeight); // ISSUE: explicit reference operation if (!rect.Contains(touchPoint)) { TiltEffect.PauseTiltEffect(); } else { TiltEffect.ApplyTiltEffect(TiltEffect.currentTiltElement, touchPoint, TiltEffect.currentTiltElementCenter); } }