### - u -

- UnfocusFocusedWidget() : Window
- Uninitialize() : AI
- UnmappedChoiceList() : UnmappedChoiceList
- Unpack() : VehicleListIdentifier
- UnreserveSingleTrack() : CYapfReserveTrack< Types >
- Unselect() : ClientNetworkContentSocketHandler
- UnselectAll() : ClientNetworkContentSocketHandler
- UnselectVehicle() : VehicleGroupWindow
- UnshareOrders() : AIOrder
- Update() : Backup< T >
- UpdateDeltaXY() : Vehicle , DisasterVehicle , Aircraft , EffectVehicle , RoadVehicle , Ship , Train
- UpdateInclination() : GroundVehicle< T, Type >
- UpdateOptionWidgetStatus() : BuildRoadToolbarWindow
- UpdateOrderTimetable() : OrderList
- UpdateOskState() : OskWindow
- UpdatePosition() : ViewportSign , Scrollbar
- UpdateRealOrderIndex() : Vehicle
- UpdateSelectionStates() : TimetableWindow
- UpdateSpeed() : RoadVehicle , Train
- UpdateStatistics() : BaseGraphWindow
- UpdateViewport() : SpecializedVehicle< T, Type >
- UpdateViewportCoordinates() : NWidgetViewport
- UpdateVirtCoord() : Sign , Station , Town , Waypoint , BaseStation
- UpdateVisualEffect() : Vehicle
- UpdateWidgetSize() : BuildObjectWindow , GameOptionsWindow , NewsWindow , NewGRFParametersWindow , SpriteAlignerWindow , SelectGameWindow , NetworkJoinStatusWindow , NetworkClientListWindow , NetworkClientListPopupWindow , LandInfoWindow , MusicWindow , MusicTrackSelectionWindow , AboutWindow , ErrmsgWindow , GameDifficultyWindow , TooltipsWindow , QueryWindow , TimetableWindow , IndustryCargoesWindow , IndustryDirectoryWindow , IndustryViewWindow , BuildIndustryWindow , VehicleGroupWindow , PerformanceRatingDetailWindow , BuildRailWaypointWindow , Window , BaseGraphWindow , GenerateProgressWindow , CreateScenarioWindow , VehicleViewWindow , DepotWindow , BuildTreesWindow , BuyCompanyWindow , ScenarioEditorToolbarWindow , SelectCompanyManagerFaceWindow , SelectCompanyLiveryWindow , CompanyFinancesWindow , GameSettingsWindow , BuildVehicleWindow , BuildRailStationWindow , ReplaceVehicleWindow , MessageOptionsWindow , AIConfigWindow , NetworkLobbyWindow , AIListWindow , AISettingsWindow , NewGRFInspectWindow , TownDirectoryWindow , BuildAirportWindow , MessageHistoryWindow , CompanyStationsWindow , VehicleDetailsWindow , VehicleListWindow , CompanyLeagueWindow , SubsidyListWindow , EnginePreviewWindow , SetDateWindow , CompanyWindow , TownViewWindow , BuildBridgeWindow , TownAuthorityWindow , CheatWindow , OrdersWindow , SelectStationWindow< T > , RefitWindow , StatusBarWindow , CustomCurrencyWindow , StationViewWindow , PaymentRatesGraphWindow
- UpdateZPosition() : GroundVehicle< T, Type >
- UpdateZPositionAndInclination() : GroundVehicle< T, Type >
- UseAsRandomAI() : AIInfo
- UsePaletteAnimation() : Blitter_8bppBase , Blitter_32bppAnim , Blitter_32bppBase , Blitter , Blitter_Null
- UserIsAllowedToChangeNewGRFs() : GUISettings
- UsesSmoothEconomy() : IndustrySpec
- UseTextRefStack() : CommandCost