UIElement.MouseWheel UIElement.MouseWheel UIElement.MouseWheel UIElement.MouseWheel Event

定義

滑鼠指標在此元素上方且使用者滾動滑鼠滾輪時發生。Occurs when the user rotates the mouse wheel while the mouse pointer is over this element.

public:
 virtual event System::Windows::Input::MouseWheelEventHandler ^ MouseWheel;
public event System.Windows.Input.MouseWheelEventHandler MouseWheel;
member this.MouseWheel : System.Windows.Input.MouseWheelEventHandler 
Public Custom Event MouseWheel As MouseWheelEventHandler 

實作

備註

焦點或滑鼠捕捉會優先於滑鼠指標的所在;因此,如果您收到MouseWheel焦點或擷取的項目中的事件,將滑鼠指標可能實際上是透過另一個項目。Focus or mouse capture take precedence over where the mouse pointer is; therefore, if you receive the MouseWheel event from a focused or captured element, the mouse pointer might actually be over another element.

此事件建立的別名Mouse.MouseWheel附加事件,此類別中,以便MouseWheel屬於類別的成員清單時UIElement繼承為基底的項目。This event creates an alias for the Mouse.MouseWheel attached event for this class, so that MouseWheel is part of the class members list when UIElement is inherited as a base element. 附加至事件處理常式MouseWheel事件會附加至基礎Mouse.MouseWheel附加事件,並接收相同的事件資料執行個體。Event handlers that are attached to the MouseWheel event are attached to the underlying Mouse.MouseWheel attached event and receive the same event data instance.

路由事件資訊Routed Event Information

識別項欄位Identifier field MouseWheelEvent
路由策略Routing strategy 事件反昇Bubbling
Delegate - 委派Delegate MouseWheelEventHandler

適用於