- Qt 5.15
- All Functions
- Qt 5.15.19 Reference Documentation

# All Functions

This is the list of all documented member functions and global functions in the Qt API. Each function has a link to the class or header file where it is declared and documented.

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

- DECLARE_READING: QSensorReading
- IMPLEMENT_READING: QSensorReading
- QAudioDecoderControl_iid: QAudioDecoderControl
- QAudioEncoderSettingsControl_iid: QAudioEncoderSettingsControl
- QAudioInputSelectorControl_iid: QAudioInputSelectorControl
- QAudioOutputSelectorControl_iid: QAudioOutputSelectorControl
- QAudioRoleControl_iid: QAudioRoleControl
- QCameraCaptureBufferFormatControl_iid: QCameraCaptureBufferFormatControl
- QCameraCaptureDestinationControl_iid: QCameraCaptureDestinationControl
- QCameraControl_iid: QCameraControl
- QCameraExposureControl_iid: QCameraExposureControl
- QCameraFeedbackControl_iid: QCameraFeedbackControl
- QCameraFlashControl_iid: QCameraFlashControl
- QCameraFocusControl_iid: QCameraFocusControl
- QCameraImageCaptureControl_iid: QCameraImageCaptureControl
- QCameraImageProcessingControl_iid: QCameraImageProcessingControl
- QCameraInfoControl_iid: QVideoDeviceSelectorControl
- QCameraLocksControl_iid: QCameraLocksControl
- QCameraViewfinderSettingsControl2_iid: QCameraViewfinderSettingsControl2
- QCameraViewfinderSettingsControl_iid: QCameraViewfinderSettingsControl
- QCameraZoomControl_iid: QCameraZoomControl
- QCustomAudioRoleControl_iid: QCustomAudioRoleControl
- QImageEncoderControl_iid: QImageEncoderControl
- QMediaAudioProbeControl_iid: QMediaAudioProbeControl
- QMediaAvailabilityControl_iid: QMediaAvailabilityControl
- QMediaContainerControl_iid: QMediaContainerControl
- QMediaGaplessPlaybackControl_iid: QMediaGaplessPlaybackControl
- QMediaPlayerControl_iid: QMediaPlayerControl
- QMediaPlaylistControl_iid: QMediaPlaylistControl
- QMediaPlaylistSourceControl_iid: QMediaPlaylistSourceControl
- QMediaRecorderControl_iid: QMediaRecorderControl
- QMediaStreamsControl_iid: QMediaStreamsControl
- QMediaVideoProbeControl_iid: QMediaVideoProbeControl
- QMetaDataReaderControl_iid: QMetaDataReaderControl
- QMetaDataWriterControl_iid: QMetaDataWriterControl
- QRadioDataControl_iid: QRadioDataControl
- QRadioTunerControl_iid: QRadioTunerControl
- QT3D_FUNCTOR: Qt3DRender::QAbstractFunctor
- QT3D_REGISTER_ASPECT: Qt3DCore::QAbstractAspect
- QVideoDeviceSelectorControl_iid: QVideoDeviceSelectorControl
- QVideoEncoderSettingsControl_iid: QVideoEncoderSettingsControl
- QVideoRendererControl_iid: QVideoRendererControl
- QVideoWidgetControl_iid: QVideoWidgetControl
- QVideoWindowControl_iid: QVideoWindowControl
- Q_MEDIA_DECLARE_CONTROL: QMediaControl
- Q_SCRIPT_DECLARE_QMETAOBJECT: QScriptEngine
- activeItemChanged: SelectionListModel
- activeKeyChanged: InputEngine
- activeStateNames: ScxmlStateMachine
- addAttenuationModel: AudioEngine
- addAudioCategory: AudioEngine
- addAudioSample: AudioEngine
- addCoordinate: MapPolygon MapPolyline
- addExcludedArea: RouteQuery
- addItem: Playlist
- addItems: Playlist
- addMapItem: Map
- addMapItemGroup: Map
- addMapItemView: Map
- addMapObject: MapObjectView
- addMapParameter: Map
- addPlayVariation: Sound
- addPoint: Trace
- addSound: AudioEngine
- addWaypoint: RouteQuery
- added: PieSeries
- alignCoordinateToPoint: Map
- append: AbstractBarSeries BarSet BoxPlotSeries BoxSet CandlestickSeries CategoryAxis PieSeries XYSeries
- applyNiceNumbers: ValueAxis
- asteriskPressed: KeyboardHandler
- at: AbstractBarSeries BarSet BoxPlotSeries BoxSet CandlestickSeries PieSeries XYSeries
- axisChanged: AxisSetting
- axisX: ChartView
- axisY: ChartView
- backPressed: KeyboardHandler
- backendProperty: PositionSource
- backtabPressed: KeyboardHandler
- barsetsAdded: AbstractBarSeries
- barsetsRemoved: AbstractBarSeries
- binaryMessageReceived: WebSocket
- boxsetsAdded: BoxPlotSeries
- boxsetsRemoved: BoxPlotSeries
- buttonIntervalChanged: InputSequence
- buttonsChanged: ActionInput
- calculateDataSize: QModbusRequest QModbusResponse
- calibrate: TiltSensor
- callPressed: KeyboardHandler
- cameraStateChanged: Camera
- cancel: GeocodeModel PlaceSearchModel PlaceSearchSuggestionModel RouteModel
- cancelCapture: CameraCapture
- cancelDelayedEvent: ScxmlStateMachine
- cancelPressed: KeyboardHandler
- cancelScan: Radio
- candlestickSetsAdded: CandlestickSeries
- candlestickSetsRemoved: CandlestickSeries
- capture: CameraCapture
- captureFailed: CameraCapture
- captureToLocation: CameraCapture
- categoryChanged: SoundEffect
- channelData: Trace
- circle: QtPositioning
- clear: AbstractBarSeries BarCategoryAxis BoxPlotSeries BoxSet CandlestickSeries PieSeries Playlist InputContext
- clearData: Map
- clearExcludedAreas: RouteQuery
- clearMapItems: Map
- clearMapParameters: Map
- clearWaypoints: RouteQuery
- cleared: BoxSet
- clickPreeditText: InputMethod
- clicked: MouseHandler ObjectPicker AbstractBarSeries AreaSeries BarSet BoxPlotSeries BoxSet CandlestickSeries CandlestickSet PieSeries PieSlice XYSeries BaseKey
- clientConnected: WebSocketServer
- commit: InputContext
- component: SceneLoader
- conformityLevel: QModbusDeviceIdentification
- connectTo: WebChannel
- containsCoordinate: MapPolyline
- context1Pressed: KeyboardHandler
- context2Pressed: KeyboardHandler
- context3Pressed: KeyboardHandler
- context4Pressed: KeyboardHandler
- convertVolume: QtMultimedia
- coordToMercator: QtPositioning
- coordinate: QtPositioning
- coordinateAt: MapPolyline
- copyFrom: Place
- copyrightLinkActivated: Map
- createInputMethod: KeyboardLayout KeyboardLayoutLoader
- createSeries: ChartView
- data: PlaceSearchModel
- dataChanged: CategoryModel
- deadZoneRadiusChanged: AxisSetting
- defaultSensorForType: QmlSensors
- deletePressed: KeyboardHandler
- detected: SensorGesture
- digit0Pressed: KeyboardHandler
- digit1Pressed: KeyboardHandler
- digit2Pressed: KeyboardHandler
- digit3Pressed: KeyboardHandler
- digit4Pressed: KeyboardHandler
- digit5Pressed: KeyboardHandler
- digit6Pressed: KeyboardHandler
- digit7Pressed: KeyboardHandler
- digit8Pressed: KeyboardHandler
- digit9Pressed: KeyboardHandler
- digitalZoomChanged: Camera
- directionChanged: SoundInstance
- directions.destinationReached: Navigator
- directions.waypointReached: Navigator
- disableRemoting: Host
- disconnectFrom: WebChannel
- doubleClicked: MouseHandler AbstractBarSeries AreaSeries BarSet BoxPlotSeries BoxSet CandlestickSeries CandlestickSet PieSeries PieSlice XYSeries
- downPressed: KeyboardHandler
- enableRemoting: Host
- enterPressed: KeyboardHandler
- entered: MouseHandler ObjectPicker
- entity: SceneLoader
- entityNames: SceneLoader
- equals: Route
- error: Audio MediaPlayer
- errorOccurred: Camera
- errorString: Category CategoryModel Place PlaceSearchModel PlaceSearchSuggestionModel XmlListModel
- escapePressed: KeyboardHandler
- exited: MouseHandler ObjectPicker
- externalLanguageSwitch: InputPanel
- featureWeight: RouteQuery
- finalize: Transaction
- find: PieSeries
- finished: ScxmlStateMachine
- finishedLoading: AudioEngine
- fitViewportToGeoShape: Map
- fitViewportToMapItems: Map
- fitViewportToVisibleMapItems: Map
- flashModeChanged: CameraFlash
- flashReady: CameraFlash
- flickFinished: MapGestureArea
- flickStarted: MapGestureArea
- flipPressed: KeyboardHandler
- fromAxesAndAngles: Transform
- fromAxisAndAngle: Transform
- fromCoordinate: Map
- fromEulerAngles: Transform
- fromGeometry: MorphTarget
- gainChanged: SoundInstance
- get: GeocodeModel RouteModel XmlListModel
- getAnimationIndex: AnimationController
- getDetails: Place
- getGroup: AnimationController
- hangupPressed: KeyboardHandler
- hovered: AbstractBarSeries AreaSeries BoxPlotSeries BoxSet CandlestickSeries CandlestickSet PieSeries PieSlice XYSeries
- imageCaptured: CameraCapture
- imageMetadataAvailable: CameraCapture
- imageSaved: CameraCapture
- init: ScxmlStateMachine
- initializeFavorite: Place
- inputMethodChanged: InputEngine
- inputMethodReset: InputEngine
- inputMethodUpdate: InputEngine
- inputModeChanged: InputEngine
- inputModes: InputMethod
- inputModesChanged: InputEngine
- insert: AbstractBarSeries BoxPlotSeries CandlestickSeries XYSeries
- insertCoordinate: MapPolyline
- insertItem: Playlist
- insertItems: Playlist
- invokeStaticScxmlService: global
- isActive: ScxmlStateMachine
- isDispatchableTarget: ScxmlStateMachine
- isLoaded: SoundEffect
- isLoadingChanged: AudioEngine
- isValid: QModbusDeviceIdentification
- isZoomed: ChartView
- itemAboutToBeInserted: Playlist
- itemAboutToBeRemoved: Playlist
- itemChanged: Playlist
- itemInserted: Playlist
- itemRemoved: Playlist
- itemSelected: SelectionListModel
- itemSource: Playlist
- keyEvent: InputMethod
- keys: ContactDetails ExtendedAttributes
- leftPressed: KeyboardHandler
- liveInstanceCountChanged: AudioEngine
- load: AudioSample Playlist
- loadFailed: Playlist
- loadSource: ShaderProgram
- loaded: Playlist
- loadedChanged: AudioSample SoundEffect
- locationsChanged: GeocodeModel
- lockStatusChanged: Camera
- log: ScxmlStateMachine
- loopCountChanged: SoundEffect
- loopsRemainingChanged: SoundEffect
- manualWhiteBalanceChanged: Camera
- mapNormalizedPointToItem : VideoOutput
- mapNormalizedRectToItem: VideoOutput
- mapPointToItem: VideoOutput
- mapPointToSource: VideoOutput
- mapPointToSourceNormalized: VideoOutput
- mapRectToItem: VideoOutput
- mapRectToSource: VideoOutput
- mapRectToSourceNormalized: VideoOutput
- mapToPosition: ChartView
- mapToValue: ChartView
- matches: KeyEvent
- maximumDigitalZoomChanged: Camera
- maximumOpticalZoomChanged: Camera
- menuPressed: KeyboardHandler
- mercatorToCoord: QtPositioning
- minimumDataSize: QModbusRequest QModbusResponse
- minorTickCountChanged: LogValueAxis
- moveItem: Playlist
- moved: ObjectPicker
- mutedChanged: SoundEffect
- newInstance: Sound
- next: Playlist
- nextIndex: Playlist
- nextPage: PlaceSearchModel
- noPressed: KeyboardHandler
- numberSignPressed: KeyboardHandler
- objectAdded: NodeInstantiator
- objectAt: NodeInstantiator
- objectIds: QModbusDeviceIdentification
- objectRemoved: NodeInstantiator
- occurred: EventConnection
- onPurchaseFailed: Product
- onPurchaseRestored: Product
- onPurchaseSucceeded: Product
- operator!=: QMediaTimeRange Qt3DRender::QGraphicsApiFilter
- operator==: QMediaTimeRange Qt3DRender::QGraphicsApiFilter
- opticalZoomChanged: Camera
- pan: Camera Map
- panAboutViewCenter: Camera
- panFinished: MapGestureArea
- panRotation: Camera
- panStarted: MapGestureArea
- path: QtPositioning
- pathLength: MapPolyline
- patternRecognitionModes: InputMethod
- patternRecognitionModesChanged: InputEngine
- pause: AudioCategory SoundInstance Audio MediaPlayer Video
- paused: Audio MediaPlayer Video
- pinchFinished: MapGestureArea
- pinchStarted: MapGestureArea
- pinchUpdated: MapGestureArea
- pitchChanged: SoundInstance
- play: Sound SoundInstance Audio MediaPlayer SoundEffect Video
- playbackStateChanged: Audio MediaPlayer
- playing: Audio MediaPlayer Video
- playingChanged: SoundEffect
- pointAdded: XYSeries
- pointRemoved: XYSeries
- pointReplaced: XYSeries
- points: Trace
- pointsRemoved: XYSeries
- pointsReplaced: XYSeries
- polygon: QtPositioning
- positionChanged: MouseHandler SoundInstance
- prefetchData: Map
- pressAndHold: MouseHandler
- pressed: KeyboardHandler MouseHandler ObjectPicker AbstractBarSeries AreaSeries BarSet BoxPlotSeries BoxSet CandlestickSeries CandlestickSet PieSeries PieSlice XYSeries
- previous: Playlist
- previousIndex: Playlist
- previousKeyChanged: InputEngine
- previousPage: PlaceSearchModel
- purchase: Product
- qIdForNode: Qt3DCore::QNode
- qIdsForNodes: Qt3DCore::QNode
- qRegisterRemoteObjectsClient: QtROClientFactory
- qRegisterRemoteObjectsServer: QtROServerFactory
- qScriptConnect: QScriptEngine
- qScriptDisconnect: QScriptEngine
- qScriptRegisterMetaType: QScriptEngine
- qScriptRegisterSequenceMetaType: QScriptEngine
- qScriptValueFromSequence: QScriptEngine
- qScriptValueToSequence: QScriptEngine
- qscriptvalue_cast: QScriptValue
- rangeChanged: BarCategoryAxis DateTimeAxis ValueAxis
- reachedStableState: ScxmlStateMachine
- ready: AudioEngine
- recalculateRoutes: Navigator
- record: CameraRecorder
- rectangle: QtPositioning
- registerDataSizeCalculator: QModbusRequest QModbusResponse
- registerObjects: WebChannel
- released: KeyboardHandler MouseHandler ObjectPicker AbstractBarSeries AreaSeries BarSet BoxPlotSeries BoxSet CandlestickSeries CandlestickSet PieSeries PieSlice XYSeries
- reload: XmlListModel
- remove: AbstractBarSeries BarSet BoxPlotSeries CandlestickSeries CategoryAxis PieSeries XYSeries Category Place
- removeAllSeries: ChartView
- removeCoordinate: MapPolygon MapPolyline
- removeExcludedArea: RouteQuery
- removeItem: Playlist SelectionListModel
- removeItems: Playlist
- removeMapItem: Map
- removeMapItemGroup: Map
- removeMapItemView: Map
- removeMapObject: MapObjectView
- removeMapParameter: Map
- removePoints: XYSeries
- removeSeries: ChartView
- removeWaypoint: RouteQuery
- removed: PieSeries
- renderSmoothedLine: TraceCanvas
- replace: BarSet CategoryAxis XYSeries
- replaceCoordinate: MapPolyline
- requestCapture: RenderCapture
- requestUpdate: SubtreeEnabler
- reselect: InputMethod
- reset: GeocodeModel PlaceSearchModel PlaceSearchSuggestionModel RouteModel InputMethod
- resetFeatureWeights: RouteQuery
- resetStatus: Product
- restorePurchases: Store
- returnPressed: KeyboardHandler
- returnValue: QRemoteObjectPendingReply
- rightPressed: KeyboardHandler
- roll: Camera
- rollAboutViewCenter: Camera
- rollRotation: Camera
- rotate: Camera
- rotateAboutViewCenter: Camera
- rotateAround: Transform
- rotation: Camera
- rotationFinished: MapGestureArea
- rotationStarted: MapGestureArea
- rotationUpdated: MapGestureArea
- save: Category Place Playlist
- saveImage: RenderCaptureReply
- scanDown: Radio
- scanUp: Radio
- scrollDown: ChartView
- scrollLeft: ChartView
- scrollRight: ChartView
- scrollUp: ChartView
- searchAllStations: Radio
- searchAndLock: Camera
- seek: Audio MediaPlayer Video
- segmentsCount: Route
- selectItem: SelectionListModel
- selectPressed: KeyboardHandler
- selectionListActiveItemChanged: InputMethod
- selectionListChanged: InputMethod
- selectionListData: InputMethod
- selectionListItemCount: InputMethod
- selectionListItemSelected: InputMethod
- selectionLists: InputMethod
- selectionListsChanged: InputMethod
- sendBinaryMessage: WebSocket
- sendKeyClick: InputContext
- sendTextMessage: WebSocket
- sensorTypes: QmlSensors
- sensorsForType: QmlSensors
- series: ChartView
- seriesAdded: ChartView
- seriesRemoved: ChartView
- setAutoAperture: CameraExposure
- setAutoIsoSensitivity: CameraExposure
- setAutoShutterSpeed: CameraExposure
- setAxisX: ChartView
- setAxisY: ChartView
- setBackendProperty: PositionSource
- setBearing: Map
- setChannelData: Trace
- setConformityLevel: QModbusDeviceIdentification
- setExceptionCode: QModbusExceptionResponse
- setFeatureWeight: RouteQuery
- setFunctionCode: QModbusExceptionResponse
- setInputMode: InputMethod
- setItemAreaAndDevicePixelRatio: Scene3D
- setMetadata: CameraCapture CameraRecorder
- setPath: MapPolyline
- setTextCase: InputMethod
- setValue: BoxSet
- setupWindowSurface: Qt3DExtras
- shape: QtPositioning
- shapeToCircle: QtPositioning
- shapeToPath: QtPositioning
- shapeToPolygon: QtPositioning
- shapeToRectangle: QtPositioning
- shuffle: Playlist
- sliceAdded: PieSeries
- sliceRemoved: PieSeries
- smoothChanged: AxisSetting
- soundChanged: SoundInstance
- sourceChanged: SoundEffect
- sourceDeviceChanged: ActionInput
- spacePressed: KeyboardHandler
- start: Camera Radio PositionSource ScxmlStateMachine Sensor
- stateChanged: SoundInstance
- stateNames: ScxmlStateMachine
- stationFound: Radio
- statusChanged: SoundEffect WebSocket
- stop: AudioCategory SoundInstance Audio Camera CameraRecorder MediaPlayer Radio SoundEffect Video PositionSource ScxmlStateMachine Sensor
- stopped: Audio MediaPlayer Video
- submitEvent: ScxmlStateMachine
- supportedAudioRoles: Audio MediaPlayer Video
- supportedViewfinderFrameRateRanges: Camera
- supportedViewfinderResolutions: Camera
- supportsGeocoding: Plugin
- supportsMapping: Plugin
- supportsNavigation: Plugin
- supportsPlaces: Plugin
- supportsRouting: Plugin
- tabPressed: KeyboardHandler
- textMessageReceived: WebSocket
- tickCountChanged: LogValueAxis
- tilt: Camera
- tiltAboutViewCenter: Camera
- tiltFinished: MapGestureArea
- tiltRotation: Camera
- tiltStarted: MapGestureArea
- tiltUpdated: MapGestureArea
- timeoutChanged: InputSequence
- toCoordinate: Map
- toggleShift: ShiftHandler
- traceBegin: InputEngine InputMethod
- traceEnd: InputEngine InputMethod
- translate: Camera
- translateWorld: Camera
- triggered: FrameAction
- tuneDown: Radio
- tuneUp: Radio
- unlock: Camera
- upPressed: KeyboardHandler
- update: GeocodeModel PlaceSearchModel PlaceSearchSuggestionModel RouteModel PositionSource InputMethod
- updateTimeout: PositionSource
- updateWith: PlaceSearchModel
- url: Icon
- valueChanged: BarSet BoxSet ExtendedAttributes
- valuesAdded: BarSet
- valuesChanged: BoxSet
- valuesRemoved: BarSet
- velocityChanged: SoundInstance
- viewAll: Camera
- viewEntity: Camera
- viewSphere: Camera
- virtualKeyCancel: InputEngine
- virtualKeyClick: InputEngine
- virtualKeyClicked: InputEngine
- virtualKeyPress: InputEngine
- virtualKeyRelease: InputEngine
- volumeChanged: SoundEffect
- volumeDownPressed: KeyboardHandler
- volumeUpPressed: KeyboardHandler
- watch: QtRemoteObjects
- waypointObjects: RouteQuery
- wheel: MouseHandler
- whiteBalanceModeChanged: Camera
- yesPressed: KeyboardHandler
- zoom: ChartView
- zoomIn: ChartView
- zoomOut: ChartView
- zoomReset: ChartView