OpenTTD

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Here is a list of all documented functions, variables, defines, enums, and typedefs with links to the documentation:

### - h -

- H2I : tgp.cpp
- HalftileFoundation() : slope_func.h
- HalftileSlope() : slope_func.h
- HaltLift() : town_map.h
- HandleAircraftEnterHangar() : aircraft.h , aircraft_cmd.cpp
- HandleAircraftSmoke() : aircraft_cmd.cpp
- HandleAutoscroll() : window.cpp
- HandleAutoSignalPlacement() : rail_gui.cpp
- HandleBankruptcyTakeover() : company_cmd.cpp
- HandleBootstrap() : bootstrap_gui.cpp , openttd.cpp
- HandleCharMsg() : win32_v.cpp
- HandleClickOnSign() : signs_func.h , signs_gui.cpp
- HandleCrash() : crashlog_osx.cpp , crashlog_unix.cpp
- HandleCrashedAircraft() : aircraft_cmd.cpp
- HandleCrashedTrain() : train_cmd.cpp
- HandleCtrlChanged() : gfx_func.h , window.cpp
- HandleGeneratingWorldAbortion() : genworld.cpp , genworld.h
- HandleIMEComposition() : win32_v.cpp
- HandleInvalidSpriteRequest() : spritecache.cpp
- HandleKeypress() : gfx_func.h , window.cpp
- HandleKeyPressResult : textbuf_type.h
- HandleMouseDragDrop() : window.cpp
- HandleMouseEvents() : gfx_func.h , window.cpp
- HandleMouseOver() : window.cpp
- HandleNode() : newgrf.cpp
- HandleNodes() : newgrf.cpp
- HandleOldDiffCustom() : settings.cpp
- HandleParameterInfo() : newgrf.cpp
- HandlePlacePushButton() : main_gui.cpp , tilehighlight_func.h
- HandleSavegameLoadCrash() : afterload.cpp
- HandleScrollbarHittest() : widget.cpp
- HandleScrollbarScrolling() : window.cpp
- HandleStationRefit() : economy.cpp
- HandleTextInput() : gfx_func.h , window.cpp
- HandleViewportScroll() : window.cpp
- HandleWindowDragging() : window.cpp
- HandleZoomMessage() : viewport.cpp , viewport_func.h
- HANGAR : airport.h
- HasAtMostOneBit() : bitmath_func.hpp
- HasBit() : bitmath_func.hpp
- HasBridgeFlatRamp() : bridge.h , tunnelbridge_cmd.cpp
- HasCatenary() : elrail_func.h
- HasCatenaryDrawn() : elrail_func.h
- HasClients() : network.cpp , network.h
- HasCPUIDFlag() : cpu.cpp , cpu.h
- HasCrossingReservation() : road_map.h
- HasDepotReservation() : rail_map.h
- HasExactlyOneBit() : bitmath_func.hpp
- HasGRFConfig() : network_content.cpp
- HasGrfMiscBit() : newgrf.h
- Hash_HashProc : queue.h
- HasModalProgress() : progress.h
- HasOnewaySignalBlockingTrackdir() : rail_map.h
- HasPbsSignalOnTrackdir() : rail_map.h
- HasPowerOnRail() : rail.h
- HasProc : network_content.cpp
- HasRailtypeAvail() : rail.cpp , rail.h
- HasReservedTracks() : pbs.h
- HasRoadTypesAvail() : road.cpp , road_func.h
- HasRoadWorks() : road_map.h
- HasScenario() : fios.cpp , network_content.cpp
- HasSignalOnTrack() : rail_map.h
- HasSignalOnTrackdir() : rail_map.h
- HasSignals() : rail_map.h
- HasSlopeHighestCorner() : slope_func.h
- HasStationInUse() : station_cmd.cpp , station_func.h
- HasStationRail() : station_map.h
- HasStationReservation() : station_map.h
- HasStationTileRail() : station_map.h
- HasTileRoadType() : road_map.h
- HasTileWaterClass() : water_map.h
- HasTileWaterGround() : water_map.h
- HasTownOwnedRoad() : road_map.h
- HasTrack() : rail_map.h
- HasTransmitter() : object_cmd.cpp
- HasTunnelBridgeReservation() : tunnelbridge_map.h
- HasTunnelBridgeSnowOrDesert() : tunnelbridge_map.h
- HasVehicleOnPos() : vehicle.cpp , vehicle_func.h
- HasVehicleOnPosXY() : vehicle.cpp , vehicle_func.h
- height_t : tgp.cpp
- HEIGHTMAP_DIR : fileio_type.h
- HEIGHTMAP_NAME : screenshot.cpp
- HeightMapAdjustWaterLevel() : tgp.cpp
- HeightmapCallback() : screenshot.cpp
- HeightMapCoastLines() : tgp.cpp
- HeightMapCurves() : tgp.cpp
- HeightMapGenerate() : tgp.cpp
- HeightMapGetMinMaxAvg() : tgp.cpp
- HeightMapMakeHistogram() : tgp.cpp
- HeightMapNormalize() : tgp.cpp
- HeightmapRotation : heightmap.h
- HeightMapSineTransform() : tgp.cpp
- HeightMapSmoothCoastInDirection() : tgp.cpp
- HeightMapSmoothCoasts() : tgp.cpp
- HeightMapSmoothSlopes() : tgp.cpp
- HELICOPTER_HOLD_MAX_FLYING_ALTITUDE : aircraft.h
- HelicopterRotorStates : aircraft_cmd.cpp
- HELIENDLANDING : airport.h
- HELILANDING : airport.h
- HELIPAD1 : airport.h
- HELIPAD1_block : airport.h
- HELIPAD2 : airport.h
- HELIPAD2_block : airport.h
- HELIPAD3 : airport.h
- HELIPAD3_block : airport.h
- HELIPAD_GROUP_block : airport.h
- HELIPORT : airport.cpp
- HELITAKEOFF : airport.h
- HelpDialogFunc() : win32.cpp
- HideDropDownMenu() : dropdown.cpp , dropdown_func.h
- HideFillingPercent() : texteff.hpp , misc_gui.cpp
- HideVitalWindows() : window.cpp , window_func.h
- HighestSnowLine() : landscape.cpp , landscape.h
- HighlightDragPosition() : train_gui.cpp
- HighLightStyle : tilehighlight_type.h
- HighScoreSorter() : highscore.cpp
- HighscoreWidgets : highscore_widget.h
- HKPR_CANCEL : textbuf_type.h
- HKPR_CONFIRM : textbuf_type.h
- HKPR_CURSOR : textbuf_type.h
- HKPR_EDITING : textbuf_type.h
- HKPR_NOT_HANDLED : textbuf_type.h
- HM_CLOCKWISE : heightmap.h
- HM_COUNTER_CLOCKWISE : heightmap.h
- HOUSE_CLASS_MAX : house.h
- HouseCallbackMask : newgrf_callbacks.h
- HouseClassID : house_type.h
- HouseExtraFlags : house.h
- HouseID : house_type.h
- HouseZones : house.h
- HT_DIAGONAL : tilehighlight_type.h
- HT_DIR_END : tilehighlight_type.h
- HT_DIR_HL : tilehighlight_type.h
- HT_DIR_HU : tilehighlight_type.h
- HT_DIR_MASK : tilehighlight_type.h
- HT_DIR_VL : tilehighlight_type.h
- HT_DIR_VR : tilehighlight_type.h
- HT_DIR_X : tilehighlight_type.h
- HT_DIR_Y : tilehighlight_type.h
- HT_DRAG : tilehighlight_type.h
- HT_DRAG_MASK : tilehighlight_type.h
- HT_LINE : tilehighlight_type.h
- HT_NONE : tilehighlight_type.h
- HT_POINT : tilehighlight_type.h
- HT_RAIL : tilehighlight_type.h
- HT_RECT : tilehighlight_type.h
- HT_SPECIAL : tilehighlight_type.h
- HT_VEHICLE : tilehighlight_type.h
- HTTP_1_0 : tcp_http.cpp
- HTTP_1_1 : tcp_http.cpp
- HVOT_AIRCRAFT : station_type.h
- HVOT_BUS : station_type.h
- HVOT_NONE : station_type.h
- HVOT_SHIP : station_type.h
- HVOT_TRAIN : station_type.h
- HVOT_TRUCK : station_type.h
- HVOT_WAYPOINT : station_type.h
- HZ_CLIMALL : house.h
- HZ_NOZNS : house.h
- HZ_SUBARTC_ABOVE : house.h
- HZ_SUBARTC_BELOW : house.h
- HZ_SUBTROPIC : house.h
- HZ_TEMP : house.h
- HZ_TOYLND : house.h
- HZ_ZON1 : house.h
- HZ_ZON5 : house.h
- HZ_ZONALL : house.h