UE4:屏蔽点击事件向下传递

Unlua:

function BuildingUpgrade:OnMouseButtonDown(Geometry, MouseEvent)
    return UE4.UWidgetBlueprintLibrary.Handled()
end

function BuildingUpgrade:OnTouchEnded(Geometry, MouseEvent)
    return UE4.UWidgetBlueprintLibrary.Handled()
end