Qt 6.3 中的新类和函数

本页面列出了 Qt 6.3 中引入的所有新类和函数的完整列表。

新类
新成员函数
命名空间中的新函数
新增的全局函数
新增宏
新的枚举类型
新的枚举值
新属性
新变量
新的 QML 类型
新的 QML 属性
新的 QML 方法

新类

O: QOpcUaDataValue; QOpcUaHistoryData; QOpcUaHistoryReadRawRequest; QOpcUaHistoryReadResponse

W: WhenAnyResult (QtFuture)

新成员职能

QAbstract3DGraph 类：

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

QBluetoothDeviceInfo 类：

`(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)

QByteArray 类：

(since 6.3) bool isValidUtf8() const

QByteArrayList 类：

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

QByteArrayMatcher 类：

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

QByteArrayView 类：

`(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

QCborArray 类：

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

QCborMap 类：

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

QCollator 类：

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

QCryptographicHash 类：

(since 6.3) QByteArrayView resultView() const

QDebug 类：

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

QDirIterator 类：

(since 6.3) QFileInfo nextFileInfo()

QDoubleValidator 类：

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

QFile 类：

`(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)

QFontComboBox 类：

`(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)

QFontMetrics 类：

`(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

QFontMetricsF 类：

`(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

QInputDevice 类：

(since 6.3) QStringList seatNames()

QLatin1StringView 类：

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

QLocalServer 类：

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

QLocale 类：

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

QEGLContext 类：

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

QNetworkInformation 类：

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

QNetworkReply 类：

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

QObject 类：

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

QOpcUaClient 类：

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

QOpcUaLocalizedText 类：

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

QOpcUaNode 类：

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

QOpcUaQualifiedName 类：

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

QProcessEnvironment 类：

(since 6.3) bool inheritsFromParent() const

QQuickItem 类：

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

QQuickRenderTarget 类：

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

QRegularExpressionMatch 类：

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

QSemaphore 类：

`(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)

QString 类：

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

QStringView 类：

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

QTableWidgetSelectionRange 类：

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

QTcpServer 类：

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

QThreadPool 类：

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

QUrl 类：

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

QUtf8StringView 类：

(since 6.3) bool isValidUtf8() const

QVarLengthArray 类：

`(since 6.3)` QVarLengthArray<T, Prealloc>::iterator	emplace(QVarLengthArray<T, Prealloc>::const_iterator pos, Args &&... args)
`(since 6.3)` T &	emplace_back(Args &&... args)

QWidget 类：

`(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)

命名空间中的新函数

`(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)

新的全局函数

(since 6.3) const char * qWebEngineChromiumSecurityPatchVersion()

新宏

`(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)

新的枚举类型

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

新的枚举值

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

新属性

(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

新变量

`(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

新的 QML 类型

D: DynamicBurst3D

F: FolderDialog

M: MessageDialog

P: ParticleCustomShape3D; PresentationTime

Q: QtShell; QtShellChrome; QtShellSurface

T: TreeView; TreeViewDelegate

新的 QML 属性

QML 类型Bar3DSeries ：

(since 6.3) rowColors : list<ThemeColor>

QML 类型Bars3D ：

(since 6.3) barSeriesMargin : size

QML 类型FileInstancing ：

(since 6.3) instanceCount : int

QML 类型HeightMapSurfaceDataProxy ：

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

QML 类型HoverHandler ：

(since 6.3) blocking : bool

QML 类型InstanceList ：

(since 6.3) instanceCount : int

QML 类型ParticleSystem3DLogging ：

(since 6.3) timeDeviation : real

QML 类型SpriteParticle3D ：

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

QML 类型Surface3DSeries ：

(since 6.3) wireframeColor : color

QML 类型TextMetrics ：

(since 6.3) renderType : enumeration

QML 类型WheelHandler ：

(since 6.3) blocking : bool

新的 QML 方法

QML 类型AbstractGraph3D ：

(since 6.3) bool hasSeries(Abstract3DSeries series)

QML 类型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 类型Item ：

(since 6.3) void dumpItemTree()

QML 类型TestCase ：

(since 6.3) failOnWarning(message)

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