UIElement::PreviewMouseWheel Event

 

Occurs when the user rotates the mouse wheel while the mouse pointer is over this element.

Namespace:   System.Windows
Assembly:  PresentationCore (in PresentationCore.dll)

public:
event MouseWheelEventHandler^ PreviewMouseWheel {
	virtual void add(MouseWheelEventHandler^ value) sealed;
	virtual void remove(MouseWheelEventHandler^ value) sealed;
}

Focus or mouse capture take precedence over where the mouse pointer is; therefore, if you receive this event from a focused or captured element, the mouse pointer might actually be over another element.

This event creates an alias for the Mouse::PreviewMouseWheel attached event for this class, so that PreviewMouseMove is part of the class members list when UIElement is inherited as a base element. Event handlers that are attached to the PreviewMouseMove event are attached to the underlying Mouse::PreviewMouseWheel attached event and receive the same event data instance.

Identifier field

PreviewMouseWheelEvent

Routing strategy

Tunneling

Delegate

MouseWheelEventHandler

.NET Framework
Available since 3.0
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