ContentElement.OnPreviewTouchDown Method (TouchEventArgs)

.NET Framework (current version)

Provides class handling for the PreviewTouchDown routed event that occurs when a touch presses this element.

Namespace:   System.Windows
Assembly:  PresentationCore (in PresentationCore.dll)

protected internal virtual void OnPreviewTouchDown(
	TouchEventArgs e


Type: System.Windows.Input.TouchEventArgs

A TouchEventArgs that contains the event data.

The OnPreviewTouchDown method has no default implementation. Override OnPreviewTouchDown in a derived class to handle the PreviewTouchDown event. Be sure to call the base class’s OnPreviewTouchDown method so that base classes receive the event.

.NET Framework
Available since 4.0
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