New Classes and Functions in Qt 6.0

virtual bool	clearItemData(const QModelIndex &index)
virtual void	multiData(const QModelIndex &index, QModelRoleDataSpan roleDataSpan) const

Class QAbstractItemView:

virtual void	initViewItemOption(QStyleOptionViewItem *option) const
virtual QAbstractItemDelegate *	itemDelegateForIndex(const QModelIndex &index) const

Class QAbstractProxyModel:

virtual bool clearItemData(const QModelIndex &index) override

Class QAction:

QList<QObject *> associatedObjects() const

Class QBitArray:

quint32 toUInt32(QSysInfo::Endian endianness, bool *ok) const

Class QBitmap:

QBitmap fromPixmap(const QPixmap &pixmap)

Class QBluetoothDeviceInfo:

QList<QBluetoothUuid> serviceUuids() const

Class QByteArray:

int	compare(QByteArrayView bv, Qt::CaseSensitivity cs) const
bool	contains(QByteArrayView bv) const
qsizetype	count(QByteArrayView bv) const
bool	endsWith(QByteArrayView bv) const
QByteArray	first(qsizetype n) const
qsizetype	indexOf(QByteArrayView bv, qsizetype from) const
QByteArray &	insert(qsizetype i, QByteArrayView data)
QByteArray	last(qsizetype n) const
qsizetype	lastIndexOf(QByteArrayView bv, qsizetype from) const
void	push_back(QByteArrayView str)
void	push_front(QByteArrayView str)
QByteArray &	replace(QByteArrayView before, QByteArrayView after)
QByteArray	sliced(qsizetype pos, qsizetype n) const
QByteArray	sliced(qsizetype pos) const
bool	startsWith(QByteArrayView bv) const

Class QCanBusDeviceInfo:

QString alias() const

Class QChar:

QChar	fromUcs2(char16_t c)
R	fromUcs4(char32_t c)

Class QDataStream:

QDataStream &	operator<<(char16_t c)
QDataStream &	operator<<(char32_t c)
QDataStream &	operator<<(QDataStream &out, const std::pair<T1, T2> &pair)
QDataStream &	operator>>(char16_t &c)
QDataStream &	operator>>(char32_t &c)
QDataStream &	operator>>(QDataStream &in, std::pair<T1, T2> &pair)

Class QDate:

QDate	fromString(QStringView string, Qt::DateFormat format)
QDate	fromString(QStringView string, QStringView format, QCalendar cal)
QDate	fromString(const QString &string, QStringView format, QCalendar cal)

Class QDateTime:

QDateTime	fromString(QStringView string, Qt::DateFormat format)
QDateTime	fromString(QStringView string, QStringView format, QCalendar cal)
QDateTime	fromString(const QString &string, QStringView format, QCalendar cal)

Class QDebug:

QDebug &	operator<<(const char16_t *t)
QDebug &	operator<<(QUtf8StringView s)
QDebug &	operator<<(QByteArrayView t)
QString	toString(T &&object)

Class QDir:

void	addSearchPath(const QString &prefix, const std::filesystem::path &path)
std::filesystem::path	filesystemAbsolutePath() const
std::filesystem::path	filesystemCanonicalPath() const
std::filesystem::path	filesystemPath() const
void	setPath(const std::filesystem::path &path)

Class QDropEvent:

Qt::MouseButtons	buttons() const
Qt::KeyboardModifiers	modifiers() const
QPointF	position() const

Class QEvent:

virtual QEvent *	clone() const
bool	isInputEvent() const
bool	isPointerEvent() const
bool	isSinglePointEvent() const

Class QExplicitlySharedDataPointer:

T *	get() const
void	reset(T *ptr)

Class QFile:

bool	copy(const std::filesystem::path &newName)
std::filesystem::path	filesystemFileName() const
bool	link(const std::filesystem::path &newName)
QFileDevice::Permissions	permissions(const std::filesystem::path &filename)
bool	rename(const std::filesystem::path &newName)
void	setFileName(const std::filesystem::path &name)
bool	setPermissions(const std::filesystem::path &filename, QFileDevice::Permissions permissionSpec)

Class QFileInfo:

std::filesystem::path	filesystemAbsoluteFilePath() const
std::filesystem::path	filesystemAbsolutePath() const
std::filesystem::path	filesystemCanonicalFilePath() const
std::filesystem::path	filesystemCanonicalPath() const
std::filesystem::path	filesystemFilePath() const
std::filesystem::path	filesystemPath() const
std::filesystem::path	filesystemSymLinkTarget() const
void	setFile(const std::filesystem::path &file)
void	stat()

Class QFuture:

bool	isSuspended() const
bool	isSuspending() const
bool	isValid() const
QFuture<T>	onCanceled(Function &&handler)
QFuture<T>	onFailed(Function &&handler)
void	setSuspended(bool suspend)
void	suspend()
T	takeResult()
QFuture<ResultType<Function>>	then(Function &&function)
QFuture<ResultType<Function>>	then(QtFuture::Launch policy, Function &&function)
QFuture<ResultType<Function>>	then(QThreadPool *pool, Function &&function)
void	toggleSuspended()

Class QFutureWatcher:

bool	isSuspended() const
bool	isSuspending() const
void	setSuspended(bool suspend)
void	suspend()
void	suspended()
void	suspending()
void	toggleSuspended()

Class QGraphicsLayoutItem:

virtual bool isEmpty() const

Class QHash:

size_t	qHash(char8_t key, size_t seed)
size_t	qHash(char16_t key, size_t seed)
size_t	qHash(char32_t key, size_t seed)
size_t	qHash(wchar_t key, size_t seed)
size_t	qHash(std::nullptr_t key, size_t seed)
size_t	qHash(QPoint key, size_t seed)
size_t	qHash(const QTypeRevision &key, size_t seed)
size_t	qHashMulti(size_t seed, const T &... args)
size_t	qHashMultiCommutative(size_t seed, const T &... args)

Class QHeaderView:

virtual void initStyleOptionForIndex(QStyleOptionHeader *option, int logicalIndex) const

Class QIODevice:

virtual qint64 skipData(qint64 maxSize)

Class QIcon:

QPixmap pixmap(const QSize &size, qreal devicePixelRatio, QIcon::Mode mode, QIcon::State state) const

Class QImage:

QImage	convertedTo(QImage::Format format, Qt::ImageConversionFlags flags) const &
QImage	convertedTo(QImage::Format format, Qt::ImageConversionFlags flags) &&
QImage	fromHBITMAP(HBITMAP hbitmap)
QImage	fromHICON(HICON icon)
void	mirror(bool horizontal, bool vertical)
void	rgbSwap()
HBITMAP	toHBITMAP() const
HICON	toHICON(const QImage &mask) const

Class QImageIOHandler:

bool	allocateImage(QSize size, QImage::Format format, QImage *image)

Class QImageReader:

int	allocationLimit()
void	setAllocationLimit(int mbLimit)

Class QInputEvent:

const QInputDevice * device() const

Class QJsonValue:

qint64 toInteger(qint64 defaultValue) const

Class QKeyEvent:

QKeyCombination keyCombination() const

Class QLabel:

QPicture picture() const

Class QLatin1StringView:

QLatin1StringView	first(qsizetype n) const
QLatin1StringView	last(qsizetype n) const
QLatin1StringView	sliced(qsizetype pos) const
QLatin1StringView	sliced(qsizetype pos, qsizetype n) const
QString	toString() const
decltype(qTokenize(*this, std::forward<Needle>(needle), flags...))	tokenize(Needle &&sep, Flags... flags) const

Class QLibraryInfo:

QString path(QLibraryInfo::LibraryPath p)

Class QList:

void	append(QList<T> &&value)
QList<T>	first(qsizetype n) const
QList<T>	last(qsizetype n) const
QList<T> &	operator+=(QList<T> &&other)
QList<T> &	operator<<(QList<T> &&other)
void	resize(qsizetype size)
void	resize(qsizetype size, QList::parameter_type c)
QList<T>	sliced(qsizetype pos, qsizetype n) const
QList<T>	sliced(qsizetype pos) const

Class QLocale:

QString quoteString(QStringView str, QLocale::QuotationStyle style) const

Class QMap:

QMap::iterator	erase(QMap::const_iterator first, QMap::const_iterator last)
std::map<Key, T>	toStdMap() &&

Class QMargins:

QMargins operator|(const QMargins &m1, const QMargins &m2)

Class QMarginsF:

QMarginsF operator|(const QMarginsF &m1, const QMarginsF &m2)

Class QMetaMethod:

QMetaType	parameterMetaType(int index) const
QByteArray	parameterTypeName(int index) const
int	relativeMethodIndex() const
QMetaType	returnMetaType() const

Class QMetaProperty:

QUntypedBindable	bindable(QObject *object) const
bool	isBindable() const
QMetaType	metaType() const
int	typeId() const

Class QMetaSequence:

QMetaSequence fromContainer()

Class QMetaType:

qsizetype	alignOf() const
QPartialOrdering	compare(const void *lhs, const void *rhs) const
bool	equals(const void *lhs, const void *rhs) const
bool	hasRegisteredDebugStreamOperator() const
bool	hasRegisteredMutableViewFunction()
bool	registerMutableView(To (From::)() function*)
bool	registerMutableView(UnaryFunction function)
bool	view(QMetaType fromType, void *from, QMetaType toType, void *to)

Class QModbusReply:

QList<QModbusDevice::IntermediateError> intermediateErrors() const

Class QModelIndex:

void	multiData(QModelRoleDataSpan roleDataSpan) const

Class QMultiHash:

QMultiHash<Key, T> & unite(const QHash<Key, T> &other)

Class QMultiMap:

QMultiMap::iterator erase(QMultiMap::const_iterator first, QMultiMap::const_iterator last)

Class QSGD3D11Texture:

QSGTexture * fromNative(void *texture, QQuickWindow *window, const QSize &size, QQuickWindow::CreateTextureOptions options)

Class QSGMetalTexture:

QSGTexture * fromNative(int texture, QQuickWindow *window, const QSize &size, QQuickWindow::CreateTextureOptions options)

Class QSGOpenGLTexture:

QSGTexture * fromNative(GLuint textureId, QQuickWindow *window, const QSize &size, QQuickWindow::CreateTextureOptions options)

Class QSGVulkanTexture:

QSGTexture * fromNative(VkImage image, VkImageLayout layout, QQuickWindow *window, const QSize &size, QQuickWindow::CreateTextureOptions options)

Class QPagedPaintDevice:

QPageRanges	pageRanges() const
virtual void	setPageRanges(const QPageRanges &ranges)

Class QPersistentModelIndex:

void	multiData(QModelRoleDataSpan roleDataSpan) const

Class QPointer:

T *	get() const

Class QProcess:

std::function<void ()>	childProcessModifier() const
void	setChildProcessModifier(const std::function<void ()> &modifier)
void	startCommand(const QString &command, QIODeviceBase::OpenMode mode)

Class QQmlApplicationEngine:

void	setExtraFileSelectors(const QStringList &extraFileSelectors)

Class QQmlExtensionPlugin:

virtual void unregisterTypes()

Class QQuickItem:

virtual void geometryChange(const QRectF &newGeometry, const QRectF &oldGeometry)

Class QQuickRenderControl:

void	beginFrame()
void	endFrame()
bool	initialize()
int	samples() const
void	setSamples(int sampleCount)
QQuickWindow *	window() const

Class QQuickWindow:

void	afterFrameEnd()
void	beforeFrameBegin()
QSGRendererInterface::GraphicsApi	graphicsApi()
QQuickGraphicsConfiguration	graphicsConfiguration() const
QQuickGraphicsDevice	graphicsDevice() const
QQuickRenderTarget	renderTarget() const
void	setGraphicsApi(QSGRendererInterface::GraphicsApi api)
void	setGraphicsConfiguration(const QQuickGraphicsConfiguration &config)
void	setGraphicsDevice(const QQuickGraphicsDevice &device)
void	setRenderTarget(const QQuickRenderTarget &target)

Class QRect:

QRect span(const QPoint &p1, const QPoint &p2)

Class QRegion:

QRegion	fromHRGN(HRGN hrgn)
HRGN	toHRGN() const

Class QRegularExpression:

QRegularExpression fromWildcard(QStringView pattern, Qt::CaseSensitivity cs, QRegularExpression::WildcardConversionOptions options)

Class QSGRenderNode:

virtual void prepare()

Class QSharedDataPointer:

T *	get()
const T *	get() const
void	reset(T *ptr)
T *	take()

Class QShortcut:

QList<QKeySequence>	keys() const
void	setKeys(QKeySequence::StandardKey key)
void	setKeys(const QList<QKeySequence> &keys)

Class QSortFilterProxyModel:

void	autoAcceptChildRowsChanged(bool autoAcceptChildRows)
void	invalidateColumnsFilter()
void	invalidateRowsFilter()

Class QSqlDriver:

virtual int maximumIdentifierLength(QSqlDriver::IdentifierType type) const

Class QSqlQuery:

QVariantList boundValues() const

Class QSslConfiguration:

bool	handshakeMustInterruptOnError() const
bool	missingCertificateIsFatal() const
void	setCiphers(const QString &ciphers)
void	setHandshakeMustInterruptOnError(bool interrupt)
void	setMissingCertificateIsFatal(bool cannotRecover)

Class QSslSocket:

void	continueInterruptedHandshake()

Class QStandardItem:

virtual void multiData(QModelRoleDataSpan roleDataSpan) const

Class QString:

QString &	append(QStringView v)
qsizetype	count(QStringView str, Qt::CaseSensitivity cs) const
QString	first(qsizetype n) const
QString	fromLatin1(QByteArrayView str)
QString	fromLocal8Bit(QByteArrayView str)
QString	fromUtf8(QByteArrayView str)
QString	fromUtf8(const char8_t *str, qsizetype size)
QString &	insert(qsizetype position, QStringView str)
QString	last(qsizetype n) const
int	localeAwareCompare(QStringView other) const
int	localeAwareCompare(QStringView s1, QStringView s2)
QString &	operator+=(QStringView str)
QString &	prepend(QStringView str)
QString	sliced(qsizetype pos, qsizetype n) const
QString	sliced(qsizetype pos) const
decltype(qTokenize(*this, std::forward<Needle>(needle), flags...))	tokenize(Needle &&sep, Flags... flags) const &
decltype(qTokenize(std::move(*this), std::forward<Needle>(needle), flags...))	tokenize(Needle &&sep, Flags... flags) const &&
decltype(qTokenize(std::move(*this), std::forward<Needle>(needle), flags...))	tokenize(Needle &&sep, Flags... flags) &&

Class QStringListModel:

virtual bool clearItemData(const QModelIndex &index) override

Class QStringTokenizer:

decltype(QtPrivate::Tok::TokenizerResult<Haystack, Needle>({std::forward<Haystack>(h), std::forward<Needle>(n), flags...})) qTokenize(Haystack &&haystack, Needle &&needle, Flags... flags)

Class QStringView:

QStringView::const_pointer	constData() const
qsizetype	count(QChar ch, Qt::CaseSensitivity cs) const
qsizetype	count(QStringView str, Qt::CaseSensitivity cs) const
QStringView	first(qsizetype n) const
QStringView	last(qsizetype n) const
QStringView	sliced(qsizetype pos, qsizetype n) const
QStringView	sliced(qsizetype pos) const
QList<QStringView>	split(QStringView sep, Qt::SplitBehavior behavior, Qt::CaseSensitivity cs) const
QList<QStringView>	split(QChar sep, Qt::SplitBehavior behavior, Qt::CaseSensitivity cs) const
QList<QStringView>	split(const QRegularExpression &re, Qt::SplitBehavior behavior) const
CFStringRef	toCFString() const
double	toDouble(bool *ok) const
float	toFloat(bool *ok) const
int	toInt(bool ok, int base*) const
long	toLong(bool ok, int base*) const
qlonglong	toLongLong(bool ok, int base*) const
NSString *	toNSString() const
short	toShort(bool ok, int base*) const
uint	toUInt(bool ok, int base*) const
ulong	toULong(bool ok, int base*) const
qulonglong	toULongLong(bool ok, int base*) const
ushort	toUShort(bool ok, int base*) const
decltype(qTokenize(*this, std::forward<Needle>(needle), flags...))	tokenize(Needle &&sep, Flags... flags) const

Class QSurfaceFormat:

void	setColorSpace(const QColorSpace &colorSpace)

Class QTextCharFormat:

qreal	baselineOffset() const
void	setBaselineOffset(qreal baseline)
void	setSubScriptBaseline(qreal baseline)
void	setSuperScriptBaseline(qreal baseline)
qreal	subScriptBaseline() const
qreal	superScriptBaseline() const

Class QTextDocument:

qreal	baselineOffset() const
void	setBaselineOffset(qreal baseline)
void	setSubScriptBaseline(qreal baseline)
void	setSuperScriptBaseline(qreal baseline)
qreal	subScriptBaseline() const
qreal	superScriptBaseline() const

Class QThreadPool:

bool	contains(const QThread *thread) const

Class QTime:

QTime	fromString(QStringView string, Qt::DateFormat format)
QTime	fromString(QStringView string, QStringView format)
QTime	fromString(const QString &string, QStringView format)

Class QTypeRevision:

QDataStream &	operator<<(QDataStream &out, const QTypeRevision &revision)
QDataStream &	operator>>(QDataStream &in, QTypeRevision &revision)

Class QUnhandledException:

std::exception_ptr	exception() const
void	swap(QUnhandledException &other)

Class QVarLengthArray:

QVarLengthArray<T, Prealloc> & operator=(QVarLengthArray<T, Prealloc> &&other)

Class QVariant:

bool	canConvert(QMetaType type) const
QPartialOrdering	compare(const QVariant &lhs, const QVariant &rhs)
bool	convert(QMetaType targetType)
QMetaType	metaType() const

Class QWidget:

QPointF	mapFrom(const QWidget *parent, const QPointF &pos) const
QPointF	mapFromGlobal(const QPointF &pos) const
QPointF	mapFromParent(const QPointF &pos) const
QPointF	mapTo(const QWidget *parent, const QPointF &pos) const
QPointF	mapToGlobal(const QPointF &pos) const
QPointF	mapToParent(const QPointF &pos) const

Class QWindow:

QPointF	mapFromGlobal(const QPointF &pos) const
QPointF	mapToGlobal(const QPointF &pos) const
virtual void	paintEvent(QPaintEvent *ev)

New Functions in Namespaces

void	resetOpenGLState()
QTaskBuilder<Task>	task(Task &&task)

New Global Functions

long double	qDegreesToRadians(long double degrees)
long double	qRadiansToDegrees(long double radians)

New Macros

	QT_IMPLICIT_QCHAR_CONSTRUCTION
	QT_IMPLICIT_QFILEINFO_CONSTRUCTION
	Q_MOC_INCLUDE
	Q_OBJECT_BINDABLE_PROPERTY(containingClass, type, name, signal)
	Q_OBJECT_BINDABLE_PROPERTY_WITH_ARGS(containingClass, type, name, initialvalue, signal)
	Q_OBJECT_COMPUTED_PROPERTY(containingClass, type, name, callback)

New Enum Types

enum	IntermediateError { ResponseCrcError, ResponseRequestMismatch }
enum	WildcardConversionOption { DefaultWildcardConversion, UnanchoredWildcardConversion }
enum class	AlertLevel { Warning, Fatal, Unknown }
enum class	AlertType { CloseNotify, UnexpectedMessage, BadRecordMac, RecordOverflow, DecompressionFailure, …, UnknownAlertMessage }
enum class	Launch { Sync, Async, Inherit }

New Type Aliases

	iterator
	QPair
	iterator

New Properties

sortIndex : const
readOnly : const
autoAcceptChildRows :
additionalShmFormats : const

New Variables

MacOSBigSur

New QML Types

C: CoreSettings

G: GeometryView

Q: QtTextInputMethodManager

New QML Properties

QML Type FontLoader:

font : font

QML Type GeometryRenderer:

sortIndex : float

QML Type Item:

palette : Palette

QML Type SceneEnvironment:

tonemapMode : enumeration

QML Type Text:

renderTypeQuality : int

QML Type WaylandCompositor:

additionalShmFormats : list<enum>

QML Type Window:

palette : Palette

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