Here is a list of all documented struct and union fields with links to the struct/union documentation for each field:

### - e -

- economy : DifficultySettings , GameSettings
- editable : NewGRFWindow
- EffectVehicle() : EffectVehicle
- empty : CargoList
- Empty() : CargoList
- enable_signal_gui : GUISettings
- EnableAutoReplaceProtection() : AIGroup
- enabled : IndustrySpec , IndustryTileSpec
- EnableWagonRemoval() : AIGroup
- EnableWidget() : Window
- Encode() : Blitter
- End() : AIAbstractListSorterValueDescending , AIAbstractListSorterItemAscending , AIAbstractListSorterItemDescending , SmallVector< T, S >
- end : MakeEnumPropsT< Tenum_t, Tstorage_t, Tbegin, Tend, Tinvalid > , TinyEnumT< Tenum_t > , LegendAndColour
- End() : AIAbstractListSorter , AIAbstractListSorterValueAscending
- EndCritical() : ThreadMutex , ThreadMutex_None , ThreadMutex_OS2 , ThreadMutex_pthread , ThreadMutex_Win32
- EndOf() : SmallStackSafeStackAlloc< T, length >
- EndStruct() : DumpTarget
- ent : DynamicLanguages
- entity_id : EntityIDMapping
- entries : SettingsPage
- entry : SettingEntry
- entry_points : AirportFTAClass
- enum_type : TinyEnumT< Tenum_t >
- Erase() : SmallMap< T, U, S > , SmallVector< T, S >
- ERR_ALREADY_BUILT : AIError
- ERR_AREA_ALREADY_FLAT : AITile
- ERR_AREA_NOT_CLEAR : AIError
- ERR_BRIDGE_BASE : AIBridge
- ERR_BRIDGE_CANNOT_END_IN_WATER : AIBridge
- ERR_BRIDGE_HEADS_NOT_ON_SAME_HEIGHT : AIBridge
- ERR_BRIDGE_TYPE_UNAVAILABLE : AIBridge
- err_build_road : RoadTypeInfo
- err_build_station : RoadTypeInfo
- ERR_CAT_BIT_SIZE : AIError
- ERR_CAT_BRIDGE : AIError
- ERR_CAT_GENERAL : AIError
- ERR_CAT_MARINE : AIError
- ERR_CAT_NONE : AIError
- ERR_CAT_ORDER : AIError
- ERR_CAT_RAIL : AIError
- ERR_CAT_ROAD : AIError
- ERR_CAT_SIGN : AIError
- ERR_CAT_STATION : AIError
- ERR_CAT_TILE : AIError
- ERR_CAT_TUNNEL : AIError
- ERR_CAT_VEHICLE : AIError
- ERR_CROSSING_ON_ONEWAY_ROAD : AIRail
- err_depot : RoadTypeInfo
- ERR_EXCAVATION_WOULD_DAMAGE : AITile
- ERR_FLAT_LAND_REQUIRED : AIError
- ERR_GENERAL_BASE : AIError
- ERR_LAND_SLOPED_WRONG : AIError
- ERR_LOCAL_AUTHORITY_REFUSES : AIError
- ERR_MARINE_BASE : AIMarine
- ERR_MARINE_MUST_BE_BUILT_ON_WATER : AIMarine
- ERR_NAME_IS_NOT_UNIQUE : AIError
- ERR_NEWGRF_SUPPLIED_ERROR : AIError
- ERR_NONE : AIError
- ERR_NONUNIFORM_STATIONS_DISABLED : AIRail
- ERR_NOT_ENOUGH_CASH : AIError
- ERR_ORDER_BASE : AIOrder
- ERR_ORDER_TOO_FAR_AWAY_FROM_PREVIOUS_DESTINATION : AIOrder
- ERR_ORDER_TOO_MANY : AIOrder
- ERR_OWNED_BY_ANOTHER_COMPANY : AIError
- ERR_PRECONDITION_FAILED : AIError
- ERR_PRECONDITION_STRING_TOO_LONG : AIError
- ERR_RAIL_BASE : AIRail
- err_remove_road : RoadTypeInfo
- err_remove_station : RoadTypeInfo
- ERR_ROAD_BASE : AIRoad
- ERR_ROAD_CANNOT_BUILD_ON_TOWN_ROAD : AIRoad
- ERR_ROAD_DRIVE_THROUGH_WRONG_DIRECTION : AIRoad
- ERR_ROAD_ONE_WAY_ROADS_CANNOT_HAVE_JUNCTIONS : AIRoad
- ERR_ROAD_WORKS_IN_PROGRESS : AIRoad
- ERR_SIGN_BASE : AISign
- ERR_SIGN_TOO_MANY_SIGNS : AISign
- ERR_SITE_UNSUITABLE : AIError
- ERR_STATION_BASE : AIStation
- ERR_STATION_TOO_CLOSE_TO_ANOTHER_STATION : AIStation
- ERR_STATION_TOO_LARGE : AIStation
- ERR_STATION_TOO_MANY_STATIONS : AIStation
- ERR_STATION_TOO_MANY_STATIONS_IN_TOWN : AIStation
- ERR_STATION_TOO_SPREAD_OUT : AIError
- ERR_TILE_BASE : AITile
- ERR_TILE_TOO_HIGH : AITile
- ERR_TILE_TOO_LOW : AITile
- ERR_TOO_CLOSE_TO_EDGE : AIError
- ERR_TUNNEL_ANOTHER_TUNNEL_IN_THE_WAY : AITunnel
- ERR_TUNNEL_BASE : AITunnel
- ERR_TUNNEL_CANNOT_BUILD_ON_WATER : AITunnel
- ERR_TUNNEL_END_SITE_UNSUITABLE : AITunnel
- ERR_TUNNEL_START_SITE_UNSUITABLE : AITunnel
- ERR_UNKNOWN : AIError
- ERR_UNSUITABLE_TRACK : AIRail
- ERR_VEHICLE_BASE : AIVehicle
- ERR_VEHICLE_BUILD_DISABLED : AIVehicle
- ERR_VEHICLE_CANNOT_REFIT : AIVehicle
- ERR_VEHICLE_CANNOT_SEND_TO_DEPOT : AIVehicle
- ERR_VEHICLE_CANNOT_START_STOP : AIVehicle
- ERR_VEHICLE_CANNOT_TURN : AIVehicle
- ERR_VEHICLE_IN_FLIGHT : AIVehicle
- ERR_VEHICLE_IN_THE_WAY : AIError
- ERR_VEHICLE_IS_DESTROYED : AIVehicle
- ERR_VEHICLE_NO_POWER : AIVehicle
- ERR_VEHICLE_NOT_AVAILABLE : AIVehicle
- ERR_VEHICLE_NOT_IN_DEPOT : AIVehicle
- ERR_VEHICLE_TOO_MANY : AIVehicle
- ERR_VEHICLE_WRONG_DEPOT : AIVehicle
- errmsg_duration : GUISettings
- Error() : AILog
- error : GRFConfig
- ErrorCategories : AIError
- ErrorMessages : AIError , AIRail , AIStation , AITile , AIVehicle , AIMarine , AISign , AIBridge , AITunnel , AIRoad , AIOrder
- ES_HANDLED : Window
- ES_NOT_HANDLED : Window
- et : ExpensesList
- event_data : AIStorage
- EventState : Window
- exclusive_rights : EconomySettings
- execute : NewGRFWindow
- Exit() : ThreadObject_pthread , ThreadObject_MorphOS , ThreadObject , ThreadObject_OS2 , ThreadObject_Win32
- expense_type : CommandCost
- expenses_layout : GUISettings
- extend_vehicle_life : VehicleSettings
- extra_dynamite : ConstructionSettings