'宣言 Protected Overrides Function CreateSpinScrollButton( _ ByVal direction As ScrollButton, _ ByVal autoRepeatDelay As Integer, _ ByVal initialDelay As Integer, _ ByVal buttonType As SpinButtonTypes _ ) As SpinScrollButtonUIElement
protected override SpinScrollButtonUIElement CreateSpinScrollButton( ScrollButton direction, int autoRepeatDelay, int initialDelay, SpinButtonTypes buttonType )