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UIElement.OnPreviewTouchDown Method

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 virtual void OnPreviewTouchDown(
	TouchEventArgs e
)

Parameters

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

Supported in: 4.6, 4.5, 4

.NET Framework Client Profile

Supported in: 4
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