New Classes and Functions in Qt 6.3
This page contains a comprehensive list of all new classes and functions introduced in Qt 6.3.
- New Classes
- New Member Functions
- New Functions in Namespaces
- New Global Functions
- New Macros
- New Enum Types
- New Enum Values
- New Properties
- New Variables
- New QML Types
- New QML Properties
- New QML Methods
New Classes
New Member Functions
Class QAbstract3DGraph:
| (since 6.3)bool | hasSeries(QAbstract3DSeries *series) const | 
Class QBluetoothDeviceInfo:
| (since 6.3)QMultiHash<QBluetoothUuid, QByteArray> | serviceData() const | 
| (since 6.3)QByteArray | serviceData(const QBluetoothUuid &serviceId) const | 
| (since 6.3)QList<QBluetoothUuid> | serviceIds() const | 
| (since 6.3)bool | setServiceData(const QBluetoothUuid &serviceId, const QByteArray &data) | 
Class QByteArray:
| (since 6.3)bool | isValidUtf8() const | 
Class QByteArrayList:
| (since 6.3)QByteArray | join(QByteArrayView separator) const | 
Class QByteArrayMatcher:
| (since 6.3)qsizetype | indexIn(QByteArrayView data, qsizetype from) const | 
Class QByteArrayView:
| (since 6.3)bool | isValidUtf8() const | 
| (since 6.3)double | toDouble(bool *ok) const | 
| (since 6.3)float | toFloat(bool *ok) const | 
| (since 6.3)int | toInt(bool *ok, int base) const | 
| (since 6.3)long | toLong(bool *ok, int base) const | 
| (since 6.3)qlonglong | toLongLong(bool *ok, int base) const | 
| (since 6.3)short | toShort(bool *ok, int base) const | 
| (since 6.3)uint | toUInt(bool *ok, int base) const | 
| (since 6.3)ulong | toULong(bool *ok, int base) const | 
| (since 6.3)qulonglong | toULongLong(bool *ok, int base) const | 
| (since 6.3)ushort | toUShort(bool *ok, int base) const | 
| (since 6.3)QByteArrayView | trimmed() const | 
Class QCborArray:
| (since 6.3)QCborArray | fromJsonArray(QJsonArray &&array) | 
Class QCborMap:
| (since 6.3)QCborMap | fromJsonObject(QJsonObject &&obj) | 
Class QCollator:
| (since 6.3)int | defaultCompare(QStringView s1, QStringView s2) | 
| (since 6.3)QCollatorSortKey | defaultSortKey(QStringView key) | 
Class QCryptographicHash:
| (since 6.3)QByteArrayView | resultView() const | 
Class QDebug:
| (since 6.3)QDebug | operator<<(QDebug debug, const QVarLengthArray<T, P> &array) | 
Class QDir:
| (since 6.3)bool | mkdir(const QString &dirName, QFileDevice::Permissions permissions) const | 
Class QDirIterator:
| (since 6.3)QFileInfo | nextFileInfo() | 
Class QDoubleValidator:
| (since 6.3)virtual void | fixup(QString &input) const override | 
Class QFile:
| (since 6.3)std::filesystem::path | filesystemSymLinkTarget() const | 
| (since 6.3)std::filesystem::path | filesystemSymLinkTarget(const std::filesystem::path &fileName) | 
| (since 6.3)bool | open(QIODeviceBase::OpenMode mode, QFileDevice::Permissions permissions) | 
Class QFontComboBox:
| (since 6.3)std::optional<QFont> | displayFont(const QString &fontFamily) const | 
| (since 6.3)QString | sampleTextForFont(const QString &fontFamily) const | 
| (since 6.3)QString | sampleTextForSystem(QFontDatabase::WritingSystem writingSystem) const | 
| (since 6.3)void | setDisplayFont(const QString &fontFamily, const QFont &font) | 
| (since 6.3)void | setSampleTextForFont(const QString &fontFamily, const QString &sampleText) | 
| (since 6.3)void | setSampleTextForSystem(QFontDatabase::WritingSystem writingSystem, const QString &sampleText) | 
Class QFontMetrics:
| (since 6.3)QRect | boundingRect(const QString &text, const QTextOption &option) const | 
| (since 6.3)int | horizontalAdvance(const QString &text, const QTextOption &option) const | 
| (since 6.3)QRect | tightBoundingRect(const QString &text, const QTextOption &option) const | 
Class QFontMetricsF:
| (since 6.3)QRectF | boundingRect(const QString &text, const QTextOption &option) const | 
| (since 6.3)qreal | horizontalAdvance(const QString &text, const QTextOption &option) const | 
| (since 6.3)QRectF | tightBoundingRect(const QString &text, const QTextOption &option) const | 
Class QInputDevice:
| (since 6.3)QStringList | seatNames() | 
Class QLatin1StringView:
| (since 6.3)qsizetype | lastIndexOf(QChar ch, Qt::CaseSensitivity cs) const | 
Class QLocalServer:
| (since 6.3)int | listenBacklogSize() const | 
| (since 6.3)void | setListenBacklogSize(int size) | 
Class QLocale:
| (since 6.3)QLocale::Language | codeToLanguage(QStringView languageCode, QLocale::LanguageCodeTypes codeTypes) | 
| (since 6.3)QString | languageToCode(QLocale::Language language, QLocale::LanguageCodeTypes codeTypes) | 
Class QEGLContext:
Class QNetworkInformation:
| (since 6.3)bool | loadDefaultBackend() | 
| (since 6.3)QNetworkInformation::Features | supportedFeatures() const | 
Class QNetworkReply:
| (since 6.3)void | requestSent() | 
| (since 6.3)void | socketStartedConnecting() | 
Class QObject:
| (since 6.3)QList<T> | findChildren(Qt::FindChildOptions options) const | 
Class QOpcUaClient:
| (since 6.3)QOpcUaHistoryReadResponse * | readHistoryData(const QOpcUaHistoryReadRawRequest &request) | 
Class QOpcUaLocalizedText:
| (since 6.3)QDebug | operator<<(QDebug debug, const QOpcUaLocalizedText &text) | 
Class QOpcUaNode:
| (since 6.3)QOpcUaHistoryReadResponse * | readHistoryRaw(const QDateTime &startTime, const QDateTime &endTime, quint32 numValues, bool returnBounds) | 
Class QOpcUaQualifiedName:
| (since 6.3)QDebug | operator<<(QDebug debug, const QOpcUaQualifiedName &name) | 
Class QProcessEnvironment:
| (since 6.3)bool | inheritsFromParent() const | 
Class QQuickItem:
| (since 6.3)void | dumpItemTree() const | 
| (since 6.3)void | ensurePolished() | 
Class QQuickRenderTarget:
| (since 6.3)qreal | devicePixelRatio() const | 
| (since 6.3)void | setDevicePixelRatio(qreal ratio) | 
Class QRegularExpressionMatch:
| (since 6.3)bool | hasCaptured(QAnyStringView name) const | 
| (since 6.3)bool | hasCaptured(int nth) const | 
Class QSemaphore:
| (since 6.3)bool | tryAcquire(int n, std::chrono::duration<Rep, Period> timeout) | 
| (since 6.3)bool | try_acquire() | 
| (since 6.3)bool | try_acquire_for(const std::chrono::duration<Rep, Period> &timeout) | 
| (since 6.3)bool | try_acquire_until(const std::chrono::time_point<Clock, Duration> &tp) | 
Class QString:
| (since 6.3)qsizetype | lastIndexOf(QChar ch, Qt::CaseSensitivity cs) const | 
Class QStringView:
| (since 6.3)qsizetype | lastIndexOf(QChar c, Qt::CaseSensitivity cs) const | 
Class QTableWidgetSelectionRange:
| (since 6.3)bool | operator!=(const QTableWidgetSelectionRange &lhs, const QTableWidgetSelectionRange &rhs) | 
| (since 6.3)bool | operator==(const QTableWidgetSelectionRange &lhs, const QTableWidgetSelectionRange &rhs) | 
Class QTcpServer:
| (since 6.3)int | listenBacklogSize() const | 
| (since 6.3)void | setListenBacklogSize(int size) | 
Class QThreadPool:
| (since 6.3)void | startOnReservedThread(QRunnable *runnable) | 
| (since 6.3)void | startOnReservedThread(Callable &&callableToRun) | 
Class QUrl:
| (since 6.3)QString | fromAce(const QByteArray &domain, QUrl::AceProcessingOptions options) | 
| (since 6.3)QByteArray | toAce(const QString &domain, QUrl::AceProcessingOptions options) | 
Class QUtf8StringView:
| (since 6.3)bool | isValidUtf8() const | 
Class QVarLengthArray:
| (since 6.3)QVarLengthArray<T, Prealloc>::iterator | emplace(QVarLengthArray<T, Prealloc>::const_iterator pos, Args &&... args) | 
| (since 6.3)T & | emplace_back(Args &&... args) | 
Class QWidget:
| (since 6.3)QAction * | addAction(const QString &text) | 
| (since 6.3)QAction * | addAction(const QIcon &icon, const QString &text) | 
| (since 6.3)QAction * | addAction(const QString &text, const QKeySequence &shortcut) | 
| (since 6.3)QAction * | addAction(const QIcon &icon, const QString &text, const QKeySequence &shortcut) | 
| (since 6.3)QAction * | addAction(const QString &text, Args &&... args) | 
| (since 6.3)QAction * | addAction(const QIcon &icon, const QString &text, Args &&... args) | 
| (since 6.3)QAction * | addAction(const QString &text, const QKeySequence &shortcut, Args &&... args) | 
| (since 6.3)QAction * | addAction(const QIcon &icon, const QString &text, const QKeySequence &shortcut, Args &&... args) | 
| (since 6.3)QAction * | addAction(const QString &text, const QObject *receiver, const char *member, Qt::ConnectionType type) | 
| (since 6.3)QAction * | addAction(const QIcon &icon, const QString &text, const QObject *receiver, const char *member, Qt::ConnectionType type) | 
| (since 6.3)QAction * | addAction(const QString &text, const QKeySequence &shortcut, const QObject *receiver, const char *member, Qt::ConnectionType type) | 
| (since 6.3)QAction * | addAction(const QIcon &icon, const QString &text, const QKeySequence &shortcut, const QObject *receiver, const char *member, Qt::ConnectionType type) | 
New Functions in Namespaces
| (since 6.3)void | failOnWarning(const char *message) | 
| (since 6.3)void | failOnWarning(const QRegularExpression &messagePattern) | 
| (since 6.3)QFuture<OutputSequence> | whenAll(InputIt first, InputIt last) | 
| (since 6.3)QFuture<OutputSequence> | whenAll(Futures &&... futures) | 
| (since 6.3)QFuture<QtFuture::WhenAnyResult<T>> | whenAny(InputIt first, InputIt last) | 
| (since 6.3)QFuture<std::variant<std::decay_t<Futures>...>> | whenAny(Futures &&... futures) | 
New Global Functions
| (since 6.3)const char * | qWebEngineChromiumSecurityPatchVersion() | 
New Macros
| (since 6.3) | QT_TRID_N_NOOP(id) | 
| (since 6.3) | QVERIFY_THROWS_EXCEPTION(exceptiontype, ...) | 
| (since 6.3) | QVERIFY_THROWS_NO_EXCEPTION(...) | 
| (since 6.3) | Q_APPLICATION_STATIC(Type, VariableName, ...) | 
| (since 6.3) | Q_GADGET_EXPORT(EXPORT_MACRO) | 
New Enum Types
| (since 6.3)enum class | TransportMedium { Unknown, Ethernet, Cellular, WiFi, Bluetooth } | 
| (since 6.3)enum | Initialization { InheritFromParent } | 
| (since 6.3)enum | AceProcessingOption { IgnoreIDNWhitelist, AceTransitionalProcessing } | 
New Enum Values
| enum value | Language::Kaingang | 
| enum value | Language::Nheengatu | 
| enum value | PixelMetric::PM_LineEditIconMargin | 
| enum value | Script::Script_CyproMinoan | 
| enum value | Script::Script_NagMundari | 
| enum value | Script::Script_OldUyghur | 
| enum value | Script::Script_Tangsa | 
| enum value | Script::Script_Toto | 
| enum value | Script::Script_Vithkuqi | 
| enum value | StandardPixmap::SP_TabCloseButton | 
| enum value | StyleHint::SH_SpinBox_SelectOnStep | 
| enum value | UnicodeVersion::Unicode_14_0 | 
New Properties
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New Variables
| (since 6.3) | MacOSMonterey | 
| (since 6.3) | Windows10_1809 | 
| (since 6.3) | Windows10_1903 | 
| (since 6.3) | Windows10_1909 | 
| (since 6.3) | Windows10_2004 | 
| (since 6.3) | Windows10_20H2 | 
| (since 6.3) | Windows10_21H1 | 
| (since 6.3) | Windows10_21H2 | 
| (since 6.3) | Windows11 | 
New QML Types
New QML Properties
QML Type Bar3DSeries:
| (since 6.3) | rowColors : list<ThemeColor> | 
QML Type Bars3D:
| (since 6.3) | barSeriesMargin : size | 
QML Type FileInstancing:
| (since 6.3) | instanceCount : int | 
QML Type HeightMapSurfaceDataProxy:
| (since 6.3) | autoScaleY : real | 
| (since 6.3) | maxYValue : real | 
| (since 6.3) | minYValue : real | 
QML Type HoverHandler:
| (since 6.3) | blocking : bool | 
QML Type InstanceList:
| (since 6.3) | instanceCount : int | 
QML Type ParticleSystem3DLogging:
| (since 6.3) | timeDeviation : real | 
QML Type SpriteParticle3D:
QML Type Surface3DSeries:
| (since 6.3) | wireframeColor : color | 
QML Type TextMetrics:
| (since 6.3) | renderType : enumeration | 
QML Type WheelHandler:
| (since 6.3) | blocking : bool | 
New QML Methods
QML Type AbstractGraph3D:
| (since 6.3)bool | hasSeries(Abstract3DSeries series) | 
QML Type Instancing:
| (since 6.3)color | instanceColor(int index) | 
| (since 6.3)vector3d | instanceCustomData(int index) | 
| (since 6.3)vector3d | instancePosition(int index) | 
| (since 6.3)quaternion | instanceRotation(int index) | 
| (since 6.3)vector3d | instanceScale(int index) | 
QML Type Item:
| (since 6.3) | dumpItemTree() | 
QML Type TestCase:
| (since 6.3) | failOnWarning(message) |