Qt 6.3 中的新类和函数

This page contains a comprehensive list of all new classes and functions introduced in Qt 6.3.

• 新类
• 新成员函数
• 名称空间中的新函数
• 新全局函数
• 新宏
• 新枚举类型
• New Enum Values
• 新特性
• 新的变量
• 新 QML 类型
• 新 QML 特性
• 新 QML 方法

新类

O

QOpcUaDataValue

QOpcUaHistoryData

QOpcUaHistoryReadRawRequest

QOpcUaHistoryReadResponse

W

QWaylandPresentationTime

WhenAnyResult ( QtFuture )

新成员函数

类 QAbstract3DGraph :

(since 6.3) bool

hasSeries (QAbstract3DSeries * series ) const

类 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 )

类 QByteArray :

(since 6.3) bool

isValidUtf8 () const

类 QByteArrayList :

(since 6.3) QByteArray

join (QByteArrayView separator ) const

类 QByteArrayMatcher :

(since 6.3) qsizetype

indexIn (QByteArrayView data , qsizetype from ) const

类 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

类 QCborArray :

(since 6.3) QCborArray

fromJsonArray (QJsonArray && array )

类 QCborMap :

(since 6.3) QCborMap

fromJsonObject (QJsonObject && obj )

类 QCollator :

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

类 QCryptographicHash :

(since 6.3) QByteArrayView

resultView () const

类 QDir :

(since 6.3) bool

mkdir (const QString & dirName , QFileDevice::Permissions permissions ) const

类 QDirIterator :

(since 6.3) QFileInfo

nextFileInfo ()

类 QDoubleValidator :

(since 6.3) virtual void

fixup (QString & input ) const override

类 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 )

类 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 )

类 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

类 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

类 QInputDevice :

(since 6.3) QStringList

seatNames ()

类 QKeyCombination :

(since 6.3) QDebug

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

类 QLatin1StringView :

(since 6.3) qsizetype

lastIndexOf (QChar ch , Qt::CaseSensitivity cs ) const

类 QLocalServer :

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

类 QLocale :

(since 6.3) QLocale::Language	codeToLanguage (QStringView languageCode , QLocale::LanguageCodeTypes codeTypes )
(since 6.3) QString	languageToCode (QLocale::Language 语言 , QLocale::LanguageCodeTypes codeTypes )

类 QEGLContext :

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

类 QNetworkInformation :

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

类 QNetworkReply :

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

类 QObject :

(since 6.3) QList<T>

findChildren (Qt::FindChildOptions options ) const

类 QOpcUaClient :

(since 6.3) QOpcUaHistoryReadResponse *

readHistoryData (const QOpcUaHistoryReadRawRequest & request )

类 QOpcUaLocalizedText :

(since 6.3) QDebug

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

类 QOpcUaNode :

(since 6.3) QOpcUaHistoryReadResponse *

readHistoryRaw (const QDateTime & startTime , const QDateTime & endTime , quint32 numValues , bool returnBounds )

类 QOpcUaQualifiedName :

(since 6.3) QDebug

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

类 QProcessEnvironment :

(since 6.3) bool

inheritsFromParent () const

类 QQuickItem :

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

类 QQuickRenderTarget :

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

类 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

类 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 )

类 QString :

(since 6.3) qsizetype

lastIndexOf (QChar c , Qt::CaseSensitivity cs ) const

类 QStringView :

(since 6.3) qsizetype

lastIndexOf (QChar c , Qt::CaseSensitivity cs ) const

类 QTableWidgetSelectionRange :

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

类 QTcpServer :

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

类 QThreadPool :

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

类 QUrl :

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

类 QUtf8StringView :

(since 6.3) bool

isValidUtf8 () const

类 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 )

类 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 )

名称空间中的新函数

(since 6.3) void	failOnWarning (const char * message )
(since 6.3) void	failOnWarning (const QRegularExpression & messagePattern )
(since 6.3) QFuture<OutputSequence>	whenAll (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 )

新全局函数

(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 )

新枚举类型

(since 6.3) enum class	TransportMedium { Unknown, Ethernet, Cellular, WiFi, Bluetooth }
(since 6.3) enum	初始化 { 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

新特性

(since 6.3) barSeriesMargin : const (since 6.3) rowColors : const (since 6.3) autoScaleY : const (since 6.3) maxYValue : const

(since 6.3) minYValue : const (since 6.3) isMetered : const (since 6.3) transportMedium : const (since 6.3) wireframeColor : const

新的变量

(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

新 QML 类型

D

DynamicBurst3D

F

FolderDialog

M

MessageDialog

P

ParticleCustomShape3D

PresentationTime

Q

QtShell

QtShellChrome

QtShellSurface

T

TreeView

TreeViewDelegate

新 QML 特性

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 : float
(since 6.3)	offsetY : float

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 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)

dumpItemTree ()

QML 类型 TestCase :

(since 6.3)

failOnWarning ( message )