UIElement.OnTouchDown(TouchEventArgs) UIElement.OnTouchDown(TouchEventArgs) UIElement.OnTouchDown(TouchEventArgs) UIElement.OnTouchDown(TouchEventArgs) Method

定義

提供 TouchDown 路由事件的類別處理,而這個事件會在觸控按下此項目內部時發生。Provides class handling for the TouchDown routed event that occurs when a touch presses inside this element.

protected:
 virtual void OnTouchDown(System::Windows::Input::TouchEventArgs ^ e);
protected virtual void OnTouchDown (System.Windows.Input.TouchEventArgs e);
abstract member OnTouchDown : System.Windows.Input.TouchEventArgs -> unit
override this.OnTouchDown : System.Windows.Input.TouchEventArgs -> unit
Protected Overridable Sub OnTouchDown (e As TouchEventArgs)

參數

e
TouchEventArgs TouchEventArgs TouchEventArgs TouchEventArgs

TouchEventArgs,其中包含事件資料。A TouchEventArgs that contains the event data.

備註

方法OnTouchDown沒有預設的實值。The OnTouchDown method has no default implementation. OnTouchDown衍生類別中覆寫以TouchDown處理事件。Override OnTouchDown in a derived class to handle the TouchDown event. 請務必呼叫基類OnTouchDown的方法, 讓基類接收事件。Be sure to call the base class' OnTouchDown method so that base classes receive the event.

適用於