Nouvelles classes et fonctions dans Qt 6.4

Cette page contient une liste complète de toutes les nouvelles classes et fonctions introduites dans Qt 6.4.

Nouvelles classes

Nouvelles fonctions des membres

Classe QAbstractItemModelTester:

(since 6.4) void setUseFetchMore(bool value)

Classe QByteArray:

(since 6.4) QByteArray operator""_ba(const char *str, size_t size)
(since 6.4) QByteArray percentDecoded(char percent = '%') const &
(since 6.4) void resize(qsizetype newSize, char c)

Classe QColor:

(since 6.4) QColor fromString(QAnyStringView name)
(since 6.4) bool isValidColorName(QAnyStringView name)

Classe QColorTransform:

(since 6.4) bool isIdentity() const
(since 6.4) QRgbaFloat16 map(QRgbaFloat16 rgbafp16) const
(since 6.4) QRgbaFloat32 map(QRgbaFloat32 rgbafp32) const
(since 6.4) bool operator!=(const QColorTransform &ct1, const QColorTransform &ct2)
(since 6.4) bool operator==(const QColorTransform &ct1, const QColorTransform &ct2)

Classe QDate:

(since 6.4) QDate addDuration(std::chrono::days ndays) const
(since 6.4) QDate fromStdSysDays(const std::chrono::sys_days &days)

Classe QDateTime:

(since 6.4) QDateTime addDuration(std::chrono::milliseconds msecs) const
(since 6.4) QDateTime fromStdLocalTime(const std::chrono::local_time<std::chrono::milliseconds> &time)
(since 6.4) QDateTime fromStdTimePoint(const std::chrono::time_point<Clock, Duration> &time)
(since 6.4) QDateTime fromStdTimePoint(const std::chrono::local_time<std::chrono::milliseconds> &time)
(since 6.4) QDateTime fromStdTimePoint(std::chrono::time_point<std::chrono::system_clock, std::chrono::milliseconds> time)
(since 6.4) QDateTime fromStdZonedTime(const int &time)
(since 6.4) QDateTime operator+(const QDateTime &dateTime, std::chrono::milliseconds duration)
(since 6.4) QDateTime operator+(std::chrono::milliseconds duration, const QDateTime &dateTime)
(since 6.4) QDateTime &operator+=(std::chrono::milliseconds duration)
(since 6.4) std::chrono::milliseconds operator-(const QDateTime &lhs, const QDateTime &rhs)
(since 6.4) QDateTime operator-(const QDateTime &dateTime, std::chrono::milliseconds duration)
(since 6.4) QDateTime &operator-=(std::chrono::milliseconds duration)
(since 6.4) std::chrono::sys_time<std::chrono::milliseconds> toStdSysMilliseconds() const
(since 6.4) std::chrono::sys_seconds toStdSysSeconds() const

Classe QFileInfo:

(since 6.4) bool isAlias() const

Classe QFormLayout:

(since 6.4) bool isRowVisible(int row) const
(since 6.4) bool isRowVisible(QLayout *layout) const
(since 6.4) bool isRowVisible(QWidget *widget) const
(since 6.4) void setRowVisible(int row, bool on)
(since 6.4) void setRowVisible(QLayout *layout, bool on)
(since 6.4) void setRowVisible(QWidget *widget, bool on)

Classe QFuture:

(since 6.4) QFuture<U> unwrap()

Classe QHash:

(since 6.4) auto asKeyValueRange() &&
(since 6.4) auto asKeyValueRange() &
(since 6.4) auto asKeyValueRange() const &&
(since 6.4) auto asKeyValueRange() const &

Classe QImage:

(since 6.4) QImage colorTransformed(const QColorTransform &transform) const &
(since 6.4) QImage colorTransformed(const QColorTransform &transform) &&

Classe QJniEnvironment:

(since 6.4) jfieldID findField(jclass clazz, const char *fieldName)
(since 6.4) jmethodID findMethod(jclass clazz, const char *methodName)
(since 6.4) jfieldID findStaticField(jclass clazz, const char *fieldName)
(since 6.4) jmethodID findStaticMethod(jclass clazz, const char *methodName)

Classe QJniObject:

(since 6.4) auto callMethod(const char *methodName, Args &&... args) const
(since 6.4) auto callMethod(const char *methodName, const char *signature, Args &&... args) const
(since 6.4) QJniObject callObjectMethod(const char *methodName, Args &&... args) const
(since 6.4) auto callStaticMethod(const char *className, const char *methodName, Args &&... args)
(since 6.4) auto callStaticMethod(jclass clazz, const char *methodName, Args &&... args)
(since 6.4) auto callStaticMethod(jclass clazz, jmethodID methodId, Args &&... args)
(since 6.4) auto callStaticMethod(const char *className, const char *methodName, const char *signature, Args &&... args)
(since 6.4) QJniObject callStaticObjectMethod(const char *className, const char *methodName, Args &&... args)
(since 6.4) QJniObject callStaticObjectMethod(jclass clazz, const char *methodName, Args &&... args)
(since 6.4) auto construct(Args &&... args)

Classe QLatin1Char:

(since 6.4) QLatin1Char operator""_L1(char ch)

Classe QLatin1StringView:

(since 6.4) const char *constBegin() const
(since 6.4) const char *constData() const
(since 6.4) const char *constEnd() const
(since 6.4) qsizetype count(QChar ch, Qt::CaseSensitivity cs = Qt::CaseSensitive) const
(since 6.4) qsizetype count(QLatin1StringView l1, Qt::CaseSensitivity cs = Qt::CaseSensitive) const
(since 6.4) qsizetype count(QStringView str, Qt::CaseSensitivity cs = Qt::CaseSensitive) const
(since 6.4) bool empty() const
(since 6.4) QLatin1Char first() const
(since 6.4) QLatin1Char last() const
(since 6.4) qsizetype length() const
(since 6.4) QLatin1StringView operator""_L1(const char *str, size_t size)
(since 6.4) double toDouble(bool *ok = nullptr) const
(since 6.4) float toFloat(bool *ok = nullptr) const
(since 6.4) int toInt(bool *ok = nullptr, int base = 10) const
(since 6.4) long toLong(bool *ok = nullptr, int base = 10) const
(since 6.4) qlonglong toLongLong(bool *ok = nullptr, int base = 10) const
(since 6.4) short toShort(bool *ok = nullptr, int base = 10) const
(since 6.4) uint toUInt(bool *ok = nullptr, int base = 10) const
(since 6.4) ulong toULong(bool *ok = nullptr, int base = 10) const
(since 6.4) qulonglong toULongLong(bool *ok = nullptr, int base = 10) const
(since 6.4) ushort toUShort(bool *ok = nullptr, int base = 10) const

Classe QLine:

(since 6.4) QLineF toLineF() const

Classe QListWidgetItem:

(since 6.4) void setTextAlignment(Qt::Alignment alignment)

Classe QMap:

(since 6.4) auto asKeyValueRange() &&
(since 6.4) auto asKeyValueRange() &
(since 6.4) auto asKeyValueRange() const &&
(since 6.4) auto asKeyValueRange() const &

Classe QMargins:

(since 6.4) QMarginsF toMarginsF() const

Classe QMetaType:

(since 6.4) size_t qHash(QMetaType key, size_t seed = 0)

Classe QMqttSubscriptionProperties:

(since 6.4) bool noLocal() const
(since 6.4) void setNoLocal(bool noloc)

Classe QMultiHash:

(since 6.4) auto asKeyValueRange() &&
(since 6.4) auto asKeyValueRange() &
(since 6.4) auto asKeyValueRange() const &&
(since 6.4) auto asKeyValueRange() const &

Classe QMultiMap:

(since 6.4) auto asKeyValueRange() &&
(since 6.4) auto asKeyValueRange() &
(since 6.4) auto asKeyValueRange() const &&
(since 6.4) auto asKeyValueRange() const &

Classe QMutexLocker:

(since 6.4) bool isLocked() const
(since 6.4) QMutexLocker<Mutex> &operator=(QMutexLocker<Mutex> &&other)
(since 6.4) void swap(QMutexLocker<Mutex> &other)

Classe QNetworkInformation:

(since 6.4) bool loadBackendByFeatures(QNetworkInformation::Features features)
(since 6.4) bool loadBackendByName(QStringView backend)

Classe QObject:

(since 6.4) bool isQuickItemType() const
(since 6.4) void setObjectName(QAnyStringView name)

Classe QPoint:

(since 6.4) QPointF toPointF() const

Classe QPolygon:

(since 6.4) QPolygonF toPolygonF() const

Classe QQmlApplicationEngine:

(since 6.4) void objectCreationFailed(const QUrl &url)

Classe QQuickRenderTarget:

(since 6.4) QQuickRenderTarget fromD3D11Texture(void *texture, uint format, const QSize &pixelSize, int sampleCount = 1)
(since 6.4) QQuickRenderTarget fromMetalTexture(MTLTexture *texture, uint format, const QSize &pixelSize, int sampleCount = 1)
(since 6.4) QQuickRenderTarget fromOpenGLTexture(uint textureId, uint format, const QSize &pixelSize, int sampleCount = 1)
(since 6.4) QQuickRenderTarget fromPaintDevice(QPaintDevice *device)
(since 6.4) QQuickRenderTarget fromVulkanImage(VkImage image, VkImageLayout layout, VkFormat format, const QSize &pixelSize, int sampleCount = 1)
(since 6.4) bool mirrorVertically() const
(since 6.4) void setMirrorVertically(bool enable)

Classe QRect:

(since 6.4) QRectF toRectF() const

Classe QSGMaterialShader:

(since 6.4) int combinedImageSamplerCount(int binding) const

Classe QSize:

(since 6.4) QSizeF toSizeF() const

Classe QString:

(since 6.4) QString operator""_s(const char16_t *str, size_t size)

Classe QStringView:

(since 6.4) qsizetype count(QLatin1StringView l1, Qt::CaseSensitivity cs = Qt::CaseSensitive) const
(since 6.4) int localeAwareCompare(QStringView other) const

Classe QTableWidgetItem:

(since 6.4) void setTextAlignment(Qt::Alignment alignment)

Classe QTcpServer:

(since 6.4) void pendingConnectionAvailable()

Classe QTemporaryDir:

(since 6.4) QTemporaryDir &operator=(QTemporaryDir &&other)
(since 6.4) void swap(QTemporaryDir &other)

Classe QTextCursor:

(since 6.4) void insertMarkdown(const QString &markdown, QTextDocument::MarkdownFeatures features = QTextDocument::MarkdownDialectGitHub)

Classe QTextDocumentFragment:

(since 6.4) QTextDocumentFragment fromMarkdown(const QString &markdown, QTextDocument::MarkdownFeatures features = QTextDocument::MarkdownDialectGitHub)
(since 6.4) QString toMarkdown(QTextDocument::MarkdownFeatures features = QTextDocument::MarkdownDialectGitHub) const
(since 6.4) QString toRawText() const

Classe QTextStream:

(since 6.4) QTextStream &operator>>(char16_t &c)

Classe QTextToSpeech:

(since 6.4) bool setEngine(const QString &engine, const QVariantMap &params = QVariantMap())

Classe QTimeZone:

(since 6.4) QTimeZone fromStdTimeZonePtr(const int *timeZone)

Classe QTreeWidgetItem:

(since 6.4) void setTextAlignment(int column, Qt::Alignment alignment)

Classe QVarLengthArray:

(since 6.4) void resize(qsizetype size, const T &v)

Classe QVersionNumber:

(since 6.4) QVersionNumber fromString(QAnyStringView string, qsizetype *suffixIndex = nullptr)

Classe QVoice:

(since 6.4) QDataStream &operator<<(QDataStream &stream, const QVoice &voice)
(since 6.4) QDebug operator<<(QDebug debug, const QVoice &voice)
(since 6.4) QDataStream &operator>>(QDataStream &stream, QVoice &voice)
(since 6.4) void swap(QVoice &other)

Classe QWebEnginePage:

(since 6.4) void fileSystemAccessRequested(QWebEngineFileSystemAccessRequest request)

Classe QWebSocket:

(since 6.4) QWebSocketHandshakeOptions handshakeOptions() const
(since 6.4) void open(const QNetworkRequest &request, const QWebSocketHandshakeOptions &options)
(since 6.4) void open(const QUrl &url, const QWebSocketHandshakeOptions &options)
(since 6.4) QString subprotocol() const

Classe QWebSocketServer:

(since 6.4) void setSupportedSubprotocols(const QStringList &protocols)
(since 6.4) QStringList supportedSubprotocols() const

Nouvelles fonctions dans les espaces de nommage

(since 6.4) bool qIsPolishScheduled(const QQuickWindow *window)
(since 6.4) bool qWaitForPolish(const QQuickWindow *window, int timeout = defaultTimeout)
(since 6.4) bool qWaitForPolish(const QQuickItem *item, int timeout = defaultTimeout)

Nouvelles macros

(since 6.4) QCOMPARE_EQ(computed, baseline)
(since 6.4) QCOMPARE_GE(computed, baseline)
(since 6.4) QCOMPARE_GT(computed, baseline)
(since 6.4) QCOMPARE_LE(computed, baseline)
(since 6.4) QCOMPARE_LT(computed, baseline)
(since 6.4) QCOMPARE_NE(computed, baseline)
(since 6.4) QTRY_COMPARE_EQ(computed, baseline)
(since 6.4) QTRY_COMPARE_EQ_WITH_TIMEOUT(computed, baseline, timeout)
(since 6.4) QTRY_COMPARE_GE(computed, baseline)
(since 6.4) QTRY_COMPARE_GE_WITH_TIMEOUT(computed, baseline, timeout)
(since 6.4) QTRY_COMPARE_GT(computed, baseline)
(since 6.4) QTRY_COMPARE_GT_WITH_TIMEOUT(computed, baseline, timeout)
(since 6.4) QTRY_COMPARE_LE(computed, baseline)
(since 6.4) QTRY_COMPARE_LE_WITH_TIMEOUT(computed, baseline, timeout)
(since 6.4) QTRY_COMPARE_LT(computed, baseline)
(since 6.4) QTRY_COMPARE_LT_WITH_TIMEOUT(computed, baseline, timeout)
(since 6.4) QTRY_COMPARE_NE(computed, baseline)
(since 6.4) QTRY_COMPARE_NE_WITH_TIMEOUT(computed, baseline, timeout)
(since 6.4) Q_CONSTINIT

Nouveaux types d'énumérations

(since 6.4) enum PolygonMode { Fill, Line }

Nouvelles valeurs d'énumération

Nouvelles propriétés

Nouvelles variables

(since 6.4) QSGMaterialShader::GraphicsPipelineState::PolygonMode polygonMode
(since 6.4) const QOperatingSystemVersionBase MacOSVentura
(since 6.4) const QOperatingSystemVersionBase Windows11_21H2
(since 6.4) const QOperatingSystemVersionBase Windows11_22H2

Nouveaux types QML

Nouvelles propriétés QML

Type QML Model:

(since 6.4) castsReflections : bool

Type QML ReflectionProbe:

(since 6.4) debugView : bool

Type QML SceneEnvironment:

(since 6.4) skyBoxCubeMap : QtQuick3D::CubeMapTexture
(since 6.4) skyboxBlurAmount : real
(since 6.4) specularAAEnabled : bool

Type QML SpriteParticle3D:

(since 6.4) castsReflections : bool

Type QML TableView:

(since 6.4) animate : bool
(since 6.4) keyNavigationEnabled : bool
(since 6.4) pointerNavigationEnabled : bool
(since 6.4) selectionBehavior : enumeration

Type QML View3D:

(since 6.4) renderFormat : enumeration

Type QML WaylandSurface:

(since 6.4) isOpaque : bool

Type QML WebSocket:

(since 6.4) negotiatedSubprotocol : string
(since 6.4) requestedSubprotocols : list<string>

Type de QML WebSocketServer:

(since 6.4) supportedSubprotocols : list<string>

Nouvelles méthodes QML

Type de QML TableView:

(since 6.4) point cellAtIndex(QModelIndex modelIndex)
(since 6.4) int columnAtIndex(QModelIndex modelIndex)
(since 6.4) QModelIndex modelIndex(point cell)
(since 6.4) int rowAtIndex(QModelIndex modelIndex)

Type QML TreeView:

(since 6.4) void collapseRecursively(row = -1)
(since 6.4) void expandRecursively(row = -1, depth = -1)
(since 6.4) void expandToIndex(QModelIndex index)

© 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.