Neue Klassen und Funktionen in Qt 6.3

Diese Seite enthält eine umfassende Liste aller neuen Klassen und Funktionen, die in Qt 6.3 eingeführt wurden.

Neue Klassen
Neue Mitgliedsfunktionen
Neue Funktionen in Namespaces
Neue globale Funktionen
Neue Makros
Neue Enum-Typen
Neue Enum-Werte
Neue Eigenschaften
Neue Variablen
Neue QML-Typen
Neue QML-Eigenschaften
Neue QML-Methoden

Neue Klassen

O: QOpcUaDataValue; QOpcUaHistoryData; QOpcUaHistoryReadRawRequest; QOpcUaHistoryReadResponse

W: WhenAnyResult (QtFuture)

Neue Mitgliederfunktionen

Klasse „ QAbstract3DGraph “:

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

Klasse „ 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)

Klasse „ QByteArray “:

(since 6.3) bool isValidUtf8() const

Klasse „ QByteArrayList “:

(since 6.3) QByteArray join(QByteArrayView separator = {}) const

Klasse „ QByteArrayMatcher “:

(since 6.3) qsizetype indexIn(QByteArrayView data, qsizetype from = 0) const

Klasse „ QByteArrayView “:

`(since 6.3)` bool	isValidUtf8() const
`(since 6.3)` double	toDouble(bool *ok = nullptr) const
`(since 6.3)` float	toFloat(bool *ok = nullptr) const
`(since 6.3)` int	toInt(bool ok = nullptr, int base* = 10) const
`(since 6.3)` long	toLong(bool ok = nullptr, int base* = 10) const
`(since 6.3)` qlonglong	toLongLong(bool ok = nullptr, int base* = 10) const
`(since 6.3)` short	toShort(bool ok = nullptr, int base* = 10) const
`(since 6.3)` uint	toUInt(bool ok = nullptr, int base* = 10) const
`(since 6.3)` ulong	toULong(bool ok = nullptr, int base* = 10) const
`(since 6.3)` qulonglong	toULongLong(bool ok = nullptr, int base* = 10) const
`(since 6.3)` ushort	toUShort(bool ok = nullptr, int base* = 10) const
`(since 6.3)` QByteArrayView	trimmed() const

Klasse „ QCborArray “:

(since 6.3) QCborArray fromJsonArray(QJsonArray &&array)

Klasse „ QCborMap “:

(since 6.3) QCborMap fromJsonObject(QJsonObject &&obj)

Klasse „ QCollator “:

`(since 6.3)` int	defaultCompare(QStringView s1, QStringView s2)
`(since 6.3)` QCollatorSortKey	defaultSortKey(QStringView key)

Klasse „ QCryptographicHash “:

(since 6.3) QByteArrayView resultView() const

Klasse „ QDebug “:

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

Klasse „ QDirIterator “:

(since 6.3) QFileInfo nextFileInfo()

Klasse „ QDoubleValidator “:

(since 6.3) virtual void fixup(QString &input) const override

Klasse „ 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)

Klasse „ 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)

Klasse „ 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

Klasse „ 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

Klasse „ QInputDevice “:

(since 6.3) QStringList seatNames()

Klasse „ QLatin1StringView “:

(since 6.3) qsizetype lastIndexOf(QChar ch, Qt::CaseSensitivity cs) const

Klasse „ QLocalServer “:

`(since 6.3)` int	listenBacklogSize() const
`(since 6.3)` void	setListenBacklogSize(int size)

Klasse „ QLocale “:

`(since 6.3)` QLocale::Language	codeToLanguage(QStringView languageCode, QLocale::LanguageCodeTypes codeTypes = AnyLanguageCode)
`(since 6.3)` QString	languageToCode(QLocale::Language language, QLocale::LanguageCodeTypes codeTypes = AnyLanguageCode)

Klasse „ QEGLContext “:

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

Klasse „ QNetworkInformation “:

`(since 6.3)` bool	loadDefaultBackend()
`(since 6.3)` QNetworkInformation::Features	supportedFeatures() const

Klasse „ QNetworkReply “:

`(since 6.3)` void	requestSent()
`(since 6.3)` void	socketStartedConnecting()

Klasse „ QObject “:

(since 6.3) QList<T> findChildren(Qt::FindChildOptions options = Qt::FindChildrenRecursively) const

Klasse „ QOpcUaClient “:

(since 6.3) QOpcUaHistoryReadResponse * readHistoryData(const QOpcUaHistoryReadRawRequest &request)

Klasse „ QOpcUaLocalizedText “:

(since 6.3) QDebug operator<<(QDebug debug, const QOpcUaLocalizedText &text)

Klasse „ QOpcUaNode “:

(since 6.3) QOpcUaHistoryReadResponse * readHistoryRaw(const QDateTime &startTime, const QDateTime &endTime, quint32 numValues, bool returnBounds)

Klasse „ QOpcUaQualifiedName “:

(since 6.3) QDebug operator<<(QDebug debug, const QOpcUaQualifiedName &name)

Klasse „ QProcessEnvironment “:

(since 6.3) bool inheritsFromParent() const

Klasse „ QQuickItem “:

`(since 6.3)` void	dumpItemTree() const
`(since 6.3)` void	ensurePolished()

Klasse „ QQuickRenderTarget “:

`(since 6.3)` qreal	devicePixelRatio() const
`(since 6.3)` void	setDevicePixelRatio(qreal ratio)

Klasse QRegularExpressionMatch:

`(since 6.3)` bool	hasCaptured(QAnyStringView name) const
`(since 6.3)` bool	hasCaptured(int nth) const

Klasse „ 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)

Klasse „ QString “:

(since 6.3) qsizetype lastIndexOf(QChar ch, Qt::CaseSensitivity cs = Qt::CaseSensitive) const

Klasse „ QStringView “:

(since 6.3) qsizetype lastIndexOf(QChar ch, Qt::CaseSensitivity cs = Qt::CaseSensitive) const

Klasse „ QTableWidgetSelectionRange “:

`(since 6.3)` bool	operator!=(const QTableWidgetSelectionRange &lhs, const QTableWidgetSelectionRange &rhs)
`(since 6.3)` bool	operator==(const QTableWidgetSelectionRange &lhs, const QTableWidgetSelectionRange &rhs)

Klasse QTcpServer:

`(since 6.3)` int	listenBacklogSize() const
`(since 6.3)` void	setListenBacklogSize(int size)

Klasse „ QThreadPool “:

`(since 6.3)` void	startOnReservedThread(QRunnable *runnable)
`(since 6.3)` void	startOnReservedThread(Callable &&callableToRun)

Klasse „ QUrl “:

`(since 6.3)` QString	fromAce(const QByteArray &domain, QUrl::AceProcessingOptions options = {})
`(since 6.3)` QByteArray	toAce(const QString &domain, QUrl::AceProcessingOptions options = {})

Klasse „ QUtf8StringView “:

(since 6.3) bool isValidUtf8() const

Klasse „ 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)

Klasse „ 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 = Qt::AutoConnection)
`(since 6.3)` QAction *	addAction(const QIcon &icon, const QString &text, const QObject *receiver, const char *member, Qt::ConnectionType type = Qt::AutoConnection)
`(since 6.3)` QAction *	addAction(const QString &text, const QKeySequence &shortcut, const QObject *receiver, const char *member, Qt::ConnectionType type = Qt::AutoConnection)
`(since 6.3)` QAction *	addAction(const QIcon &icon, const QString &text, const QKeySequence &shortcut, const QObject *receiver, const char *member, Qt::ConnectionType type = Qt::AutoConnection)

Neue Funktionen 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)

Neue globale Funktionen

(since 6.3) const char * qWebEngineChromiumSecurityPatchVersion()

Neue Makros

`(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)

Neue Enum-Typen

`(since 6.3)` enum class	TransportMedium { Unknown, Ethernet, Cellular, WiFi, Bluetooth }
`(since 6.3)` enum	Initialization { InheritFromParent }
`(since 6.3)` enum	AceProcessingOption { IgnoreIDNWhitelist, AceTransitionalProcessing }

Neue Enum-Werte

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

Neue Eigenschaften

(since 6.3) barSeriesMargin : QSizeF
(since 6.3) rowColors : QList<QColor>
(since 6.3) autoScaleY : bool
(since 6.3) maxYValue : float

(since 6.3) minYValue : float
(since 6.3) isMetered : bool
(since 6.3) transportMedium : TransportMedium
(since 6.3) wireframeColor : QColor

Neue Variablen

`(since 6.3)` const QOperatingSystemVersion	MacOSMonterey
`(since 6.3)` const QOperatingSystemVersionBase	Windows10_1809
`(since 6.3)` const QOperatingSystemVersionBase	Windows10_1903
`(since 6.3)` const QOperatingSystemVersionBase	Windows10_1909
`(since 6.3)` const QOperatingSystemVersionBase	Windows10_2004
`(since 6.3)` const QOperatingSystemVersionBase	Windows10_20H2
`(since 6.3)` const QOperatingSystemVersionBase	Windows10_21H1
`(since 6.3)` const QOperatingSystemVersionBase	Windows10_21H2
`(since 6.3)` const QOperatingSystemVersionBase	Windows11

Neue QML-Typen

D: DynamicBurst3D

F: FolderDialog

M: MessageDialog

P: ParticleCustomShape3D; PresentationTime

Q: QtShell; QtShellChrome; QtShellSurface

T: TreeView; TreeViewDelegate

Neue QML-Eigenschaften

QML-Typ „ Bar3DSeries “:

(since 6.3) rowColors : list<ThemeColor>

QML-Typ „ Bars3D “:

(since 6.3) barSeriesMargin : size

QML-Typ „ FileInstancing “:

(since 6.3) instanceCount : int

QML-Typ „ HeightMapSurfaceDataProxy “:

`(since 6.3)`	autoScaleY : real
`(since 6.3)`	maxYValue : real
`(since 6.3)`	minYValue : real

QML-Typ „ HoverHandler “:

(since 6.3) blocking : bool

QML-Typ „ InstanceList “:

(since 6.3) instanceCount : int

QML-Typ „ ParticleSystem3DLogging “:

(since 6.3) timeDeviation : real

QML-Typ „ SpriteParticle3D “:

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

QML-Typ „ Surface3DSeries “:

(since 6.3) wireframeColor : color

QML-Typ „ TextMetrics “:

(since 6.3) renderType : enumeration

QML-Typ „ WheelHandler “:

(since 6.3) blocking : bool

Neue QML-Methoden

QML-Typ „ AbstractGraph3D “:

(since 6.3) bool hasSeries(Abstract3DSeries series)

QML-Typ „ 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-Typ „ Item “:

(since 6.3) void dumpItemTree()

QML-Typ „ TestCase “:

(since 6.3) failOnWarning(message)

© 2026 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.