ContentElement.PreviewTouchDown Event

Reference

Definition

Namespace:: System.Windows

Assembly:: PresentationCore.dll

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

Occurs when a finger touches the screen while the finger is over this element.

public:
 event EventHandler<System::Windows::Input::TouchEventArgs ^> ^ PreviewTouchDown;

public event EventHandler<System.Windows.Input.TouchEventArgs> PreviewTouchDown;

member this.PreviewTouchDown : EventHandler<System.Windows.Input.TouchEventArgs>

Public Custom Event PreviewTouchDown As EventHandler(Of TouchEventArgs)

Event Type

EventHandler<TouchEventArgs>

Remarks

By default, the PreviewTouchDown and TouchDown events do not occur until a finger touches the screen and moves. Pressing a finger on the screen and holding it without moving it causes the press and hold behavior of a Stylus. The press and hold behavior is equivalent to a mouse right-click.

To cause the PreviewTouchDown and TouchDown events to occur as soon as a finger touches the screen, set the Stylus.IsPressAndHoldEnabled attached property to false for this element.

Routed Event Information

Item	Value
Identifier field	PreviewTouchDownEvent
Routing strategy	Tunneling
Delegate	EventHandler<TEventArgs> of type TouchEventArgs.

The corresponding bubbling event is TouchDown.
Override OnPreviewTouchDown to implement class handling for this event in derived classes.

Applies to

Product	Versions
.NET Framework	4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1
Windows Desktop	3.0, 3.1, 5, 6, 7, 8, 9, 10

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