UIElement.PreviewTouchDown Event
Important
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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)
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.
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.
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 |
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