UIElement.PreviewTouchDown Event
Occurs when a finger touches the screen while the finger is over this element.
Namespace: System.Windows
Assembly: PresentationCore (in PresentationCore.dll)
XMLNS for XAML: http://schemas.microsoft.com/winfx/2006/xaml/presentation, http://schemas.microsoft.com/netfx/2007/xaml/presentation
Identifier field | |
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.
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.
