### - u -

- UnfocusFocusedWidget() : Window
- UnshareOrders() : AIOrder
- UpdateListPosition() : NewGRFAddWindow
- UpdateOrderTimetable() : OrderList
- UpdatePosition() : ViewportSign , Scrollbar
- UpdateSpeed() : Train
- UpdateViewportCoordinates() : NWidgetViewport
- UpdateVirtCoord() : BaseStation , Station
- UpdateWidgetSize() : SelectStationWindow< T > , TownAuthorityWindow , CompanyStationsWindow , OrdersWindow , NewsWindow , NewGRFWindow , NewGRFAddWindow , QueryWindow , QueryStringWindow , TooltipsWindow , ErrmsgWindow , IndustryDirectoryWindow , BuildIndustryWindow , SetDateWindow , CompanyWindow , SelectCompanyManagerFaceWindow , SelectCompanyLiveryWindow , BuildTreesWindow , ReplaceVehicleWindow , AIDebugWindow , AIConfigWindow , AISettingsWindow , AIListWindow , VehicleViewWindow , VehicleDetailsWindow , CompanyFinancesWindow , VehicleListWindow , Window , TownDirectoryWindow , StationViewWindow , RefitWindow
- UsePaletteAnimation() : Blitter