New Classes and Functions in Qt 5.8
This page contains a comprehensive list of all new classes and functions introduced in Qt 5.8. Links to new APIs in previous Qt 5 releases are found at the bottom of this page.
- New Namespaces
- New Classes
- New Member Functions
- New Functions in Namespaces
- New Global Functions
- New Macros
- New Enum Types
- New Typedefs
- New Properties
- New QML Types
- New QML Properties
- New QML Signals
- New QML Methods
New Namespaces
| namespace | QScxmlExecutableContent | 
New Classes
- A
- QAbstractOAuth
- QAbstractOAuth2
- QAbstractOAuthReplyHandler
- AssignmentInfo (QScxmlExecutableContent)
- QAbstractPhysicalDeviceProxy (Qt3DInput)
- QAxisAccumulator (Qt3DInput)
- C
- QCanBus
- QCanBusDevice
- QCanBusFactory
- QCanBusFrame
- QCandlestickLegendMarker
- QCandlestickModelMapper
- QCandlestickSeries
- QCandlestickSet
- L
- Loader (QScxmlCompiler)
- M
- QModbusClient
- QModbusDataUnit
- QModbusDevice
- QModbusDeviceIdentification
- QModbusExceptionResponse
- QModbusPdu
- QModbusReply
- QModbusRequest
- QModbusResponse
- QModbusRtuSerialMaster
- QModbusRtuSerialSlave
- QModbusServer
- QModbusTcpClient
- QModbusTcpServer
- S
- QSGImageNode
- QSGRectangleNode
- QSGRenderNode
- QSGRendererInterface
- QSctpServer
- QSctpSocket
- QScxmlDynamicScxmlServiceFactory
- QScxmlInvokableService
- QScxmlInvokableServiceFactory
- QScxmlStaticScxmlServiceFactory
- QScxmlTableData
- QSslDiffieHellmanParameters
- W
- QWaylandBufferRef
- QWaylandClient
- QWaylandCompositor
- QWaylandIviApplication
- QWaylandIviSurface
- QWaylandKeyboard
- QWaylandOutput
- QWaylandOutputMode
- QWaylandPointer
- QWaylandQuickItem
- QWaylandQuickShellSurfaceItem
- QWaylandSeat
- QWaylandShellSurface
- QWaylandSurface
- QWaylandSurfaceGrabber
- QWaylandTouch
- QWaylandView
- QWaylandWlShell
- QWaylandWlShellSurface
- QWaylandXdgPopupV5
- QWaylandXdgShellV5
- QWaylandXdgSurfaceV5
New Member Functions
Class QBluetoothDeviceDiscoveryAgent:
| int | lowEnergyDiscoveryTimeout() const | 
| void | setLowEnergyDiscoveryTimeout(int timeout) | 
| void | start(QBluetoothDeviceDiscoveryAgent::DiscoveryMethods methods) | 
| QBluetoothDeviceDiscoveryAgent::DiscoveryMethods | supportedDiscoveryMethods() | 
Class QLowEnergyController:
| QBluetoothUuid | remoteDeviceUuid() const | 
Class QChar:
| bool | operator!=(const QScopedPointer<T, Cleanup> &lhs, std::nullptr_t) | 
| bool | operator!=(std::nullptr_t, const QScopedPointer<T, Cleanup> &rhs) | 
| bool | operator!=(const QSharedPointer<T> &lhs, std::nullptr_t) | 
| bool | operator!=(std::nullptr_t, const QSharedPointer<T> &rhs) | 
| bool | operator!=(const QWeakPointer<T> &lhs, std::nullptr_t) | 
| bool | operator!=(std::nullptr_t, const QWeakPointer<T> &rhs) | 
| bool | operator==(const QScopedPointer<T, Cleanup> &lhs, std::nullptr_t) | 
| bool | operator==(std::nullptr_t, const QScopedPointer<T, Cleanup> &rhs) | 
| bool | operator==(const QSharedPointer<T> &lhs, std::nullptr_t) | 
| bool | operator==(std::nullptr_t, const QSharedPointer<T> &rhs) | 
| bool | operator==(const QWeakPointer<T> &lhs, std::nullptr_t) | 
| bool | operator==(std::nullptr_t, const QWeakPointer<T> &rhs) | 
Class QStringView:
| uint | qHash(const QHash<Key, T> &key, uint seed) | 
| uint | qHash(const QMultiHash<Key, T> &key, uint seed) | 
Class QLatin1String:
| QLatin1Char | at(int pos) const | 
| QLatin1String | left(int length) const | 
| QLatin1String | mid(int start) const | 
| QLatin1String | mid(int start, int length) const | 
| QLatin1Char | operator[](int pos) const | 
| QLatin1String | right(int length) const | 
Class QStringRef:
Class QKeyValueIterator:
| bool | operator!=(const QScopedPointer<T, Cleanup> &lhs, std::nullptr_t) | 
| bool | operator!=(std::nullptr_t, const QScopedPointer<T, Cleanup> &rhs) | 
| bool | operator!=(const QSharedPointer<T> &lhs, std::nullptr_t) | 
| bool | operator!=(std::nullptr_t, const QSharedPointer<T> &rhs) | 
| bool | operator!=(const QWeakPointer<T> &lhs, std::nullptr_t) | 
| bool | operator!=(std::nullptr_t, const QWeakPointer<T> &rhs) | 
| bool | operator==(const QScopedPointer<T, Cleanup> &lhs, std::nullptr_t) | 
| bool | operator==(std::nullptr_t, const QScopedPointer<T, Cleanup> &rhs) | 
| bool | operator==(const QSharedPointer<T> &lhs, std::nullptr_t) | 
| bool | operator==(std::nullptr_t, const QSharedPointer<T> &rhs) | 
| bool | operator==(const QWeakPointer<T> &lhs, std::nullptr_t) | 
| bool | operator==(std::nullptr_t, const QWeakPointer<T> &rhs) | 
Class QVector:
| uint | qHash(const QHash<Key, T> &key, uint seed) | 
| uint | qHash(const QMultiHash<Key, T> &key, uint seed) | 
Class QPair:
| bool | operator!=(const QScopedPointer<T, Cleanup> &lhs, std::nullptr_t) | 
| bool | operator!=(std::nullptr_t, const QScopedPointer<T, Cleanup> &rhs) | 
| bool | operator!=(const QSharedPointer<T> &lhs, std::nullptr_t) | 
| bool | operator!=(std::nullptr_t, const QSharedPointer<T> &rhs) | 
| bool | operator!=(const QWeakPointer<T> &lhs, std::nullptr_t) | 
| bool | operator!=(std::nullptr_t, const QWeakPointer<T> &rhs) | 
| bool | operator==(const QScopedPointer<T, Cleanup> &lhs, std::nullptr_t) | 
| bool | operator==(std::nullptr_t, const QScopedPointer<T, Cleanup> &rhs) | 
| bool | operator==(const QSharedPointer<T> &lhs, std::nullptr_t) | 
| bool | operator==(std::nullptr_t, const QSharedPointer<T> &rhs) | 
| bool | operator==(const QWeakPointer<T> &lhs, std::nullptr_t) | 
| bool | operator==(std::nullptr_t, const QWeakPointer<T> &rhs) | 
Class QList:
| uint | qHash(const QHash<Key, T> &key, uint seed) | 
| uint | qHash(const QMultiHash<Key, T> &key, uint seed) | 
Class QRegExp:
| uint | qHash(const QHash<Key, T> &key, uint seed) | 
| uint | qHash(const QMultiHash<Key, T> &key, uint seed) | 
Class QStringList:
| QString | join(QLatin1String separator) const | 
Class QScopedPointer:
| bool | operator!=(const QScopedPointer<T, Cleanup> &lhs, std::nullptr_t) | 
| bool | operator!=(std::nullptr_t, const QScopedPointer<T, Cleanup> &rhs) | 
| bool | operator!=(const QSharedPointer<T> &lhs, std::nullptr_t) | 
| bool | operator!=(std::nullptr_t, const QSharedPointer<T> &rhs) | 
| bool | operator!=(const QWeakPointer<T> &lhs, std::nullptr_t) | 
| bool | operator!=(std::nullptr_t, const QWeakPointer<T> &rhs) | 
| bool | operator==(const QScopedPointer<T, Cleanup> &lhs, std::nullptr_t) | 
| bool | operator==(std::nullptr_t, const QScopedPointer<T, Cleanup> &rhs) | 
| bool | operator==(const QSharedPointer<T> &lhs, std::nullptr_t) | 
| bool | operator==(std::nullptr_t, const QSharedPointer<T> &rhs) | 
| bool | operator==(const QWeakPointer<T> &lhs, std::nullptr_t) | 
| bool | operator==(std::nullptr_t, const QWeakPointer<T> &rhs) | 
Class QVarLengthArray:
| bool | operator!=(const QSharedPointer<T> &lhs, std::nullptr_t) | 
| bool | operator!=(std::nullptr_t, const QSharedPointer<T> &rhs) | 
| bool | operator!=(const QWeakPointer<T> &lhs, std::nullptr_t) | 
| bool | operator!=(std::nullptr_t, const QWeakPointer<T> &rhs) | 
| bool | operator==(const QSharedPointer<T> &lhs, std::nullptr_t) | 
| bool | operator==(std::nullptr_t, const QSharedPointer<T> &rhs) | 
| bool | operator==(const QWeakPointer<T> &lhs, std::nullptr_t) | 
| bool | operator==(std::nullptr_t, const QWeakPointer<T> &rhs) | 
Class QHash:
| uint | qHash(const QMultiHash<Key, T> &key, uint seed) | 
Class QMultiHash:
| uint | qHash(const QMultiHash<Key, T> &key, uint seed) | 
Class QDateTime:
| qint64 | currentSecsSinceEpoch() | 
| QDateTime | fromSecsSinceEpoch(qint64 secs, Qt::TimeSpec spec, int offsetSeconds) | 
| QDateTime | fromSecsSinceEpoch(qint64 secs, const QTimeZone &timeZone) | 
| void | setSecsSinceEpoch(qint64 secs) | 
| qint64 | toSecsSinceEpoch() const | 
Class QSharedPointer:
| bool | operator!=(const QSharedPointer<T> &lhs, std::nullptr_t) | 
| bool | operator!=(std::nullptr_t, const QSharedPointer<T> &rhs) | 
| bool | operator!=(const QWeakPointer<T> &lhs, std::nullptr_t) | 
| bool | operator!=(std::nullptr_t, const QWeakPointer<T> &rhs) | 
| bool | operator==(const QSharedPointer<T> &lhs, std::nullptr_t) | 
| bool | operator==(std::nullptr_t, const QSharedPointer<T> &rhs) | 
| bool | operator==(const QWeakPointer<T> &lhs, std::nullptr_t) | 
| bool | operator==(std::nullptr_t, const QWeakPointer<T> &rhs) | 
Class QWeakPointer:
| bool | operator!=(const QSharedPointer<T> &lhs, std::nullptr_t) | 
| bool | operator!=(std::nullptr_t, const QSharedPointer<T> &rhs) | 
| bool | operator!=(const QWeakPointer<T> &lhs, std::nullptr_t) | 
| bool | operator!=(std::nullptr_t, const QWeakPointer<T> &rhs) | 
| bool | operator==(const QSharedPointer<T> &lhs, std::nullptr_t) | 
| bool | operator==(std::nullptr_t, const QSharedPointer<T> &rhs) | 
| bool | operator==(const QWeakPointer<T> &lhs, std::nullptr_t) | 
| bool | operator==(std::nullptr_t, const QWeakPointer<T> &rhs) | 
Class QCommandLineOption:
Class QPointF:
| QPointF | fromCGPoint(CGPoint point) | 
| CGPoint | toCGPoint() const | 
Class QPoint:
| CGPoint | toCGPoint() const | 
Class QMutex:
| bool | try_lock() | 
| bool | try_lock_for(std::chrono::duration<Rep, Period> duration) | 
| bool | try_lock_until(std::chrono::time_point<Clock, Duration> timePoint) | 
Class QLibraryInfo:
| QVersionNumber | version() | 
Class QLine:
| QPoint | center() const | 
Class QLineF:
| QPointF | center() const | 
Class QMetaEnum:
| bool | isScoped() const | 
Class QSize:
| CGSize | toCGSize() const | 
Class QSizeF:
| QSizeF | fromCGSize(CGSize size) | 
| CGSize | toCGSize() const | 
Class QRect:
| CGRect | toCGRect() const | 
Class QRectF:
| QRectF | fromCGRect(CGRect rect) | 
| CGRect | toCGRect() const | 
Class QTimer:
| std::chrono::milliseconds | intervalAsDuration() const | 
| std::chrono::milliseconds | remainingTimeAsDuration() const | 
| void | singleShot(std::chrono::milliseconds msec, const QObject *receiver, const char *member) | 
| void | singleShot(std::chrono::milliseconds msec, Qt::TimerType timerType, const QObject *receiver, const char *member) | 
| void | start(std::chrono::milliseconds msec) | 
Class QWaitCondition:
| void | notify_all() | 
| void | notify_one() | 
Class QColor:
| bool | isValidColor(QLatin1String name) | 
| void | setNamedColor(QLatin1String name) | 
Class QRegion:
| QRegion::const_iterator | begin() const | 
| QRegion::const_iterator | cbegin() const | 
| QRegion::const_iterator | cend() const | 
| QRegion::const_reverse_iterator | crbegin() const | 
| QRegion::const_reverse_iterator | crend() const | 
| QRegion::const_iterator | end() const | 
| QRegion::const_reverse_iterator | rbegin() const | 
| QRegion::const_reverse_iterator | rend() const | 
Class QVector2D:
| bool | operator!=(QPointingDeviceUniqueId lhs, QPointingDeviceUniqueId rhs) | 
| bool | operator==(QPointingDeviceUniqueId lhs, QPointingDeviceUniqueId rhs) | 
Class QPointingDeviceUniqueId:
| bool | operator!=(QPointingDeviceUniqueId lhs, QPointingDeviceUniqueId rhs) | 
| bool | operator==(QPointingDeviceUniqueId lhs, QPointingDeviceUniqueId rhs) | 
| uint | qHash(QPointingDeviceUniqueId key, uint seed) | 
| uint | qHash(const QRawFont &font, uint seed) | 
Class TouchPoint:
Class QFont:
| uint | qHash(const QRawFont &font, uint seed) | 
Class QMatrix:
| uint | qHash(const QRawFont &font, uint seed) | 
Class QTransform:
| uint | qHash(const QRawFont &font, uint seed) | 
Class QRawFont:
Class QAbstractTextDocumentLayout:
Class QFontMetrics:
| int | capHeight() const | 
Class QFontMetricsF:
| qreal | capHeight() const | 
Class QOpenGLContext:
| QFunctionPointer | getProcAddress(const char *procName) const | 
Class QPlatformTheme:
| virtual QIcon | fileIcon(const QFileInfo &fileInfo, QPlatformTheme::IconOptions iconOptions) const | 
Class QNetworkCacheMetaData:
| QDebug | operator<<(QDebug debug, const QSslDiffieHellmanParameters &dhparam) | 
Class QSslPreSharedKeyAuthenticator:
| bool | operator==(const QSslDiffieHellmanParameters &lhs, const QSslDiffieHellmanParameters &rhs) | 
Class QHostAddress:
| bool | isEqual(const QHostAddress &other, QHostAddress::ConversionMode mode) const | 
| QDebug | operator<<(QDebug debug, const QSslDiffieHellmanParameters &dhparam) | 
| QHostAddress & | operator=(QHostAddress::SpecialAddress address) | 
| void | setAddress(QHostAddress::SpecialAddress address) | 
Class QSslConfiguration:
| QSslDiffieHellmanParameters | diffieHellmanParameters() const | 
| QByteArray | preSharedKeyIdentityHint() const | 
| void | setDiffieHellmanParameters(const QSslDiffieHellmanParameters &dhparams) | 
| void | setPreSharedKeyIdentityHint(const QByteArray &hint) | 
Class QNetworkAccessManager:
| QNetworkReply * | sendCustomRequest(const QNetworkRequest &request, const QByteArray &verb, const QByteArray &data) | 
| QNetworkReply * | sendCustomRequest(const QNetworkRequest &request, const QByteArray &verb, QHttpMultiPart *multiPart) | 
Class QNetworkProxyFactory:
| bool | usesSystemConfiguration() | 
Class QOcspResponse:
| bool | operator==(const QSslDiffieHellmanParameters &lhs, const QSslDiffieHellmanParameters &rhs) | 
Class QSslDiffieHellmanParameters:
| QDebug | operator<<(QDebug debug, const QSslDiffieHellmanParameters &dhparam) | 
| bool | operator==(const QSslDiffieHellmanParameters &lhs, const QSslDiffieHellmanParameters &rhs) | 
| uint | qHash(const QSslDiffieHellmanParameters &dhparam, uint seed) | 
Class QUdpSocket:
| QNetworkDatagram | receiveDatagram(qint64 maxSize) | 
| qint64 | writeDatagram(const QNetworkDatagram &datagram) | 
Class QJSValue:
| bool | isQMetaObject() const | 
| const QMetaObject * | toQMetaObject() const | 
Class QJSEngine:
| QJSValue | newQMetaObject(const QMetaObject *metaObject) | 
| QJSValue | newQMetaObject() | 
Class QQmlEngine:
| void | exit(int retCode) | 
| int | qmlRegisterUncreatableMetaObject(const QMetaObject &staticMetaObject, const char *uri, int versionMajor, int versionMinor, const char *qmlName, const QString &reason) | 
Class QQuickWindow:
| QSGImageNode * | createImageNode() const | 
| QSGNinePatchNode * | createNinePatchNode() const | 
| QSGRectangleNode * | createRectangleNode() const | 
| QSGRendererInterface * | rendererInterface() const | 
| void | setSceneGraphBackend(QSGRendererInterface::GraphicsApi api) | 
| void | setSceneGraphBackend(const QString &backend) | 
Class QSGEngine:
| QSGImageNode * | createImageNode() const | 
| QSGNinePatchNode * | createNinePatchNode() const | 
| QSGRectangleNode * | createRectangleNode() const | 
| QSGRendererInterface * | rendererInterface() const | 
Class QQuickStyle:
| void | setFallbackStyle(const QString &style) | 
Class QSerialPort:
| void | errorOccurred(QSerialPort::SerialPortError error) | 
Class QQuickWebEngineProfile:
| QStringList | spellCheckLanguages() const | 
Class QWebSocket:
| void | preSharedKeyAuthenticationRequired(QSslPreSharedKeyAuthenticator *authenticator) | 
Class QWebSocketServer:
| void | preSharedKeyAuthenticationRequired(QSslPreSharedKeyAuthenticator *authenticator) | 
Class QFormLayout:
| void | removeRow(int row) | 
| void | removeRow(QWidget *widget) | 
| void | removeRow(QLayout *layout) | 
| QFormLayout::TakeRowResult | takeRow(int row) | 
| QFormLayout::TakeRowResult | takeRow(QWidget *widget) | 
| QFormLayout::TakeRowResult | takeRow(QLayout *layout) | 
Class QMainWindow:
| void | tabifiedDockWidgetActivated(QDockWidget *dockWidget) | 
Class QUndoStack:
| void | resetClean() | 
New Functions in Namespaces
| QAndroidJniObject | androidContext() | 
| qreal | convertVolume(qreal volume, QAudio::VolumeScale from, QAudio::VolumeScale to) | 
| QTouchDevice * | createTouchDevice(QTouchDevice::DeviceType devType) | 
| char * | toString(std::nullptr_t) | 
New Global Functions
| bool | operator!=(QPointingDeviceUniqueId lhs, QPointingDeviceUniqueId rhs) | 
| bool | operator!=(std::nullptr_t, const QWeakPointer<T> &rhs) | 
| bool | operator!=(const QWeakPointer<T> &lhs, std::nullptr_t) | 
| bool | operator!=(std::nullptr_t, const QSharedPointer<T> &rhs) | 
| bool | operator!=(const QSharedPointer<T> &lhs, std::nullptr_t) | 
| bool | operator!=(std::nullptr_t, const QScopedPointer<T, Cleanup> &rhs) | 
| bool | operator!=(const QScopedPointer<T, Cleanup> &lhs, std::nullptr_t) | 
| QDebug | operator<<(QDebug debug, const QSslDiffieHellmanParameters &dhparam) | 
| bool | operator==(const QSslDiffieHellmanParameters &lhs, const QSslDiffieHellmanParameters &rhs) | 
| bool | operator==(QPointingDeviceUniqueId lhs, QPointingDeviceUniqueId rhs) | 
| bool | operator==(std::nullptr_t, const QWeakPointer<T> &rhs) | 
| bool | operator==(const QWeakPointer<T> &lhs, std::nullptr_t) | 
| bool | operator==(std::nullptr_t, const QSharedPointer<T> &rhs) | 
| bool | operator==(const QSharedPointer<T> &lhs, std::nullptr_t) | 
| bool | operator==(std::nullptr_t, const QScopedPointer<T, Cleanup> &rhs) | 
| bool | operator==(const QScopedPointer<T, Cleanup> &lhs, std::nullptr_t) | 
| uint | qHash(const QSslDiffieHellmanParameters &dhparam, uint seed) | 
| uint | qHash(const QRawFont &font, uint seed) | 
| uint | qHash(QPointingDeviceUniqueId key, uint seed) | 
| uint | qHash(const QMultiHash<Key, T> &key, uint seed) | 
| uint | qHash(const QHash<Key, T> &key, uint seed) | 
| int | qmlRegisterUncreatableMetaObject(const QMetaObject &staticMetaObject, const char *uri, int versionMajor, int versionMinor, const char *qmlName, const QString &reason) | 
New Macros
| QT_NO_NARROWING_CONVERSIONS_IN_CONNECT | |
| QT_NO_NARROWING_CONVERSIONS_IN_CONNECT | |
| Q_ENUM_NS(...) | |
| Q_ENUM_NS(...) | |
| void | Q_FALLTHROUGH | 
| void | Q_FALLTHROUGH | 
| Q_FLAG_NS(...) | |
| Q_FLAG_NS(...) | |
| Q_NAMESPACE | |
| Q_NAMESPACE | 
New Enum Types
| enum | VolumeScale { LinearVolumeScale, CubicVolumeScale, LogarithmicVolumeScale, DecibelVolumeScale } | 
| enum | DiscoveryMethod { NoMethod, ClassicMethod, LowEnergyMethod } | 
| enum | ConversionModeFlag { ConvertV4MappedToIPv4, ConvertV4CompatToIPv4, ConvertUnspecifiedAddress, ConvertLocalHost, TolerantConversion, StrictConversion } | 
| enum | LegendMarkerType { LegendMarkerTypeArea, LegendMarkerTypeBar, LegendMarkerTypePie, LegendMarkerTypeXY, LegendMarkerTypeBoxPlot, LegendMarkerTypeCandlestick } | 
| enum | anonymous { NoContainer, NoString, NoInstruction, NoEvaluator } | 
New Typedefs
| typedef | QModbusDataUnitMap | 
| typedef | QModbusDataUnitMap | 
| typedef | const_iterator | 
| typedef | const_reverse_iterator | 
| typedef | ContainerId | 
| typedef | EvaluatorId | 
| typedef | InstructionId | 
| typedef | StringId | 
New Properties
- useHoverEffects : const
New QML Types
New QML Properties
| delayed | |
| font.hintingPreference | |
| font.hintingPreference | |
| font.hintingPreference | |
| imageSource | |
| overwriteMode | |
| overwriteMode |