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

Class QAbstract3DGraph:

(since 6.3) bool hasSeries(QAbstract3DSeries *series) const

Class QBluetoothDeviceInfo:

(since 6.3) QByteArray serviceData(const QBluetoothUuid &serviceId) const
(since 6.3) QMultiHash<QBluetoothUuid, QByteArray> serviceData() 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 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 QKeyCombination:

(since 6.3) QDebug operator<<(QDebug debug, const QVarLengthArray<T, P> &array)

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:

(since 6.3) virtual EGLConfig config() const = 0
(since 6.3) virtual EGLDisplay display() const = 0

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(const QString &name) const
(since 6.3) bool hasCaptured(QStringView 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 c, 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 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, 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)
(since 6.3) QAction *addAction(const QIcon &icon, const QString &text, const QKeySequence &shortcut)
(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)
(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)

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(Futures &&... futures)
(since 6.3) QFuture<OutputSequence> whenAll(InputIt first, InputIt last)
(since 6.3) QFuture<std::variant<std::decay_t<Futures>...>> whenAny(Futures &&... futures)
(since 6.3) QFuture<QtFuture::WhenAnyResult<T>> whenAny(InputIt first, InputIt last)

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

New Properties

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:

(since 6.3) lights : list<Light>
(since 6.3) offsetX : float
(since 6.3) offsetY : float

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)

© 2024 The Qt Company Ltd. Documentation contributions included herein are the copyrights of their respective owners. The documentation provided herein is licensed under the terms of the GNU Free Documentation License version 1.3 as published by the Free Software Foundation. Qt and respective logos are trademarks of The Qt Company Ltd. in Finland and/or other countries worldwide. All other trademarks are property of their respective owners.