成员的完整列表，这些成员属于 sw::MouseWheelEventArgs,包括所有继承而来的类成员

EventType	sw::RoutedEventArgsOfType< UIElement_MouseWheel >	static
eventType	sw::RoutedEventArgs
handled	sw::RoutedEventArgs
handledMsg	sw::RoutedEventArgs
keyState (定义于 sw::MouseWheelEventArgs)	sw::MouseWheelEventArgs
mousePosition (定义于 sw::MouseWheelEventArgs)	sw::MouseWheelEventArgs
MouseWheelEventArgs(int wheelDelta, Point mousePosition, MouseKey keyState) (定义于 sw::MouseWheelEventArgs)	sw::MouseWheelEventArgs	inline
RoutedEventArgs(RoutedEventType eventType)	sw::RoutedEventArgs
wheelDelta (定义于 sw::MouseWheelEventArgs)	sw::MouseWheelEventArgs