Qt 5.15
New Classes and Functions in Qt 5.6
Qt 5.15.15 Reference Documentation

New Classes and Functions in Qt 5.6

This page contains a comprehensive list of all new classes and functions introduced in Qt 5.6. Links to new APIs in previous Qt 5 releases are found at the bottom of this page.

New Classes
New Member Functions
New Global Functions
New Macros
New Enum Types
New Type Aliases
New Properties
New QML Types
New QML Properties
New QML Signals
New QML Methods

New Classes

A: QAbstractLight (Qt3DRender); QAbstractPhysicalDevice (Qt3DInput); QAudioRoleControl

G: QGeoCodeReply; QGeoCodingManager; QGeoCodingManagerEngine; QGeoManeuver; QGeoRoute; QGeoRouteReply; QGeoRouteRequest; QGeoRouteSegment; QGeoRoutingManager; QGeoRoutingManagerEngine; QGeoServiceProvider; QGeoServiceProviderFactory

K: key_iterator (QMap); key_iterator (QHash)

L: QLogicalDevice (Qt3DInput)

O: QObjectPicker (Qt3DRender); QOpenGLExtraFunctions

Q: QQuickAsyncImageProvider; QQuickImageResponse

R: QRgba64

T: QTransform (Qt3DCore)

V: QVersionNumber

New Member Functions

Class QByteArray:

const_reverse_iterator	crbegin() const
const_reverse_iterator	crend() const
reverse_iterator	rbegin()
const_reverse_iterator	rbegin() const
reverse_iterator	rend()
const_reverse_iterator	rend() const

Class FromBase64Result:

uint	qHash(const QVector<T> &key, uint seed)
uint	qHash(const QList<T> &key, uint seed)
uint	qHash(const QRegExp &key, uint seed)
uint	qHash(const QLocale &key, uint seed)
uint	qHash(const QRegularExpression &key, uint seed)
uint	qHash(const QUrlQuery &key, uint seed)
uint	qHash(const QVersionNumber &key, uint seed)
uint	qHash(const QMimeType &key, uint seed)

Class QChar:

bool	operator<(const QVector<T> &lhs, const QVector<T> &rhs)
bool	operator<(const QList<T> &lhs, const QList<T> &rhs)
bool	operator<(const QVarLengthArray<T, Prealloc1> &lhs, const QVarLengthArray<T, Prealloc2> &rhs)
bool	operator<=(const QVector<T> &lhs, const QVector<T> &rhs)
bool	operator<=(const QList<T> &lhs, const QList<T> &rhs)
bool	operator<=(const QVarLengthArray<T, Prealloc1> &lhs, const QVarLengthArray<T, Prealloc2> &rhs)
bool	operator>(const QVector<T> &lhs, const QVector<T> &rhs)
bool	operator>(const QList<T> &lhs, const QList<T> &rhs)
bool	operator>(const QVarLengthArray<T, Prealloc1> &lhs, const QVarLengthArray<T, Prealloc2> &rhs)
bool	operator>=(const QVector<T> &lhs, const QVector<T> &rhs)
bool	operator>=(const QList<T> &lhs, const QList<T> &rhs)
bool	operator>=(const QVarLengthArray<T, Prealloc1> &lhs, const QVarLengthArray<T, Prealloc2> &rhs)

Class QCommandLineParser:

void	setOptionsAfterPositionalArgumentsMode(OptionsAfterPositionalArgumentsMode parsingMode)

Class QDebug:

void	setVerbosity(int verbosityLevel)
int	verbosity() const

Class QDir:

QChar listSeparator()

Class QHash:

key_iterator	keyBegin() const
key_iterator	keyEnd() const
int	qGlobalQHashSeed()
uint	qHash(const QLocale &key, uint seed)
uint	qHash(const QRegularExpression &key, uint seed)
uint	qHash(const QUrlQuery &key, uint seed)
uint	qHash(const QVersionNumber &key, uint seed)
uint	qHash(const QMimeType &key, uint seed)
void	qSetGlobalQHashSeed(int newSeed)

Class QHistoryState:

QAbstractTransition *	defaultTransition() const
void	setDefaultTransition(QAbstractTransition *transition)

Class QItemSelectionRange:

void	swap(QItemSelectionRange &other)

Class QLinkedList:

const_reverse_iterator	crbegin() const
const_reverse_iterator	crend() const
reverse_iterator	rbegin()
const_reverse_iterator	rbegin() const
reverse_iterator	rend()
const_reverse_iterator	rend() const

Class QList:

const T &	constFirst() const
const T &	constLast() const
const_reverse_iterator	crbegin() const
const_reverse_iterator	crend() const
bool	operator<(const QList<T> &lhs, const QList<T> &rhs)
bool	operator<(const QVarLengthArray<T, Prealloc1> &lhs, const QVarLengthArray<T, Prealloc2> &rhs)
bool	operator<=(const QList<T> &lhs, const QList<T> &rhs)
bool	operator<=(const QVarLengthArray<T, Prealloc1> &lhs, const QVarLengthArray<T, Prealloc2> &rhs)
bool	operator>(const QList<T> &lhs, const QList<T> &rhs)
bool	operator>(const QVarLengthArray<T, Prealloc1> &lhs, const QVarLengthArray<T, Prealloc2> &rhs)
bool	operator>=(const QList<T> &lhs, const QList<T> &rhs)
bool	operator>=(const QVarLengthArray<T, Prealloc1> &lhs, const QVarLengthArray<T, Prealloc2> &rhs)
uint	qHash(const QList<T> &key, uint seed)
uint	qHash(const QRegExp &key, uint seed)
uint	qHash(const QLocale &key, uint seed)
uint	qHash(const QRegularExpression &key, uint seed)
uint	qHash(const QUrlQuery &key, uint seed)
uint	qHash(const QVersionNumber &key, uint seed)
uint	qHash(const QMimeType &key, uint seed)
reverse_iterator	rbegin()
const_reverse_iterator	rbegin() const
reverse_iterator	rend()
const_reverse_iterator	rend() const

Class QLocale:

uint	qHash(const QLocale &key, uint seed)
uint	qHash(const QRegularExpression &key, uint seed)
uint	qHash(const QUrlQuery &key, uint seed)
uint	qHash(const QVersionNumber &key, uint seed)
uint	qHash(const QMimeType &key, uint seed)
void	swap(QLocale &other)

Class QMap:

QPair<const_iterator, const_iterator>	equal_range(const Key &key) const
key_iterator	keyBegin() const
key_iterator	keyEnd() const

Class QMimeType:

uint	qHash(const QMimeType &key, uint seed)

Class QMultiHash:

uint	qHash(const QLocale &key, uint seed)
uint	qHash(const QRegularExpression &key, uint seed)
uint	qHash(const QUrlQuery &key, uint seed)
uint	qHash(const QVersionNumber &key, uint seed)
uint	qHash(const QMimeType &key, uint seed)

Class QPair:

bool	operator<(const QVector<T> &lhs, const QVector<T> &rhs)
bool	operator<(const QList<T> &lhs, const QList<T> &rhs)
bool	operator<(const QVarLengthArray<T, Prealloc1> &lhs, const QVarLengthArray<T, Prealloc2> &rhs)
bool	operator<=(const QVector<T> &lhs, const QVector<T> &rhs)
bool	operator<=(const QList<T> &lhs, const QList<T> &rhs)
bool	operator<=(const QVarLengthArray<T, Prealloc1> &lhs, const QVarLengthArray<T, Prealloc2> &rhs)
bool	operator>(const QVector<T> &lhs, const QVector<T> &rhs)
bool	operator>(const QList<T> &lhs, const QList<T> &rhs)
bool	operator>(const QVarLengthArray<T, Prealloc1> &lhs, const QVarLengthArray<T, Prealloc2> &rhs)
bool	operator>=(const QVector<T> &lhs, const QVector<T> &rhs)
bool	operator>=(const QList<T> &lhs, const QList<T> &rhs)
bool	operator>=(const QVarLengthArray<T, Prealloc1> &lhs, const QVarLengthArray<T, Prealloc2> &rhs)

Class QPersistentModelIndex:

uint	qHash(const QLocale &key, uint seed)
uint	qHash(const QRegularExpression &key, uint seed)
uint	qHash(const QUrlQuery &key, uint seed)
uint	qHash(const QVersionNumber &key, uint seed)
uint	qHash(const QMimeType &key, uint seed)

Class QPointer:

void	swap(QPointer<T> &other)

Class QProcess:

void	errorOccurred(QProcess::ProcessError error)

Class QRegExp:

uint	qHash(const QRegExp &key, uint seed)
uint	qHash(const QLocale &key, uint seed)
uint	qHash(const QRegularExpression &key, uint seed)
uint	qHash(const QUrlQuery &key, uint seed)
uint	qHash(const QVersionNumber &key, uint seed)
uint	qHash(const QMimeType &key, uint seed)

Class QRegularExpression:

uint	qHash(const QRegularExpression &key, uint seed)
uint	qHash(const QUrlQuery &key, uint seed)
uint	qHash(const QVersionNumber &key, uint seed)
uint	qHash(const QMimeType &key, uint seed)

Class QSet:

bool	intersects(const QSet<T> &other) const

Class QSharedPointer:

QSharedPointer<T> &	operator=(QSharedPointer<X> &&other)
uint	qHash(const QRegularExpression &key, uint seed)
uint	qHash(const QUrlQuery &key, uint seed)
uint	qHash(const QVersionNumber &key, uint seed)
uint	qHash(const QMimeType &key, uint seed)

Class QStorageInfo:

int	blockSize() const

Class QString:

const_reverse_iterator	crbegin() const
const_reverse_iterator	crend() const
reverse_iterator	rbegin()
const_reverse_iterator	rbegin() const
reverse_iterator	rend()
const_reverse_iterator	rend() const

Class QStringRef:

void	truncate(int position)

Class QStringView:

uint	qHash(const QVector<T> &key, uint seed)
uint	qHash(const QList<T> &key, uint seed)
uint	qHash(const QRegExp &key, uint seed)
uint	qHash(const QLocale &key, uint seed)
uint	qHash(const QRegularExpression &key, uint seed)
uint	qHash(const QUrlQuery &key, uint seed)
uint	qHash(const QVersionNumber &key, uint seed)
uint	qHash(const QMimeType &key, uint seed)

Class QSysInfo:

QString machineHostName()

Class QTemporaryDir:

QString errorString() const

Class QTextStream:

QTextStream & operator<<(const QStringRef &string)

Class QUrlQuery:

uint	qHash(const QUrlQuery &key, uint seed)
uint	qHash(const QVersionNumber &key, uint seed)
uint	qHash(const QMimeType &key, uint seed)

Class QVarLengthArray:

const_reverse_iterator	crbegin() const
const_reverse_iterator	crend() const
bool	operator<(const QVarLengthArray<T, Prealloc1> &lhs, const QVarLengthArray<T, Prealloc2> &rhs)
bool	operator<=(const QVarLengthArray<T, Prealloc1> &lhs, const QVarLengthArray<T, Prealloc2> &rhs)
bool	operator>(const QVarLengthArray<T, Prealloc1> &lhs, const QVarLengthArray<T, Prealloc2> &rhs)
bool	operator>=(const QVarLengthArray<T, Prealloc1> &lhs, const QVarLengthArray<T, Prealloc2> &rhs)
uint	qHash(const QLocale &key, uint seed)
uint	qHash(const QRegularExpression &key, uint seed)
uint	qHash(const QUrlQuery &key, uint seed)
uint	qHash(const QVersionNumber &key, uint seed)
uint	qHash(const QMimeType &key, uint seed)
reverse_iterator	rbegin()
const_reverse_iterator	rbegin() const
reverse_iterator	rend()
const_reverse_iterator	rend() const

Class QUuid:

uint	qHash(const QVersionNumber &key, uint seed)
uint	qHash(const QMimeType &key, uint seed)

Class QVector:

void	append(T &&value)
const T &	constFirst() const
const T &	constLast() const
const_reverse_iterator	crbegin() const
const_reverse_iterator	crend() const
void	move(int from, int to)
bool	operator<(const QVector<T> &lhs, const QVector<T> &rhs)
bool	operator<(const QList<T> &lhs, const QList<T> &rhs)
bool	operator<(const QVarLengthArray<T, Prealloc1> &lhs, const QVarLengthArray<T, Prealloc2> &rhs)
bool	operator<=(const QVector<T> &lhs, const QVector<T> &rhs)
bool	operator<=(const QList<T> &lhs, const QList<T> &rhs)
bool	operator<=(const QVarLengthArray<T, Prealloc1> &lhs, const QVarLengthArray<T, Prealloc2> &rhs)
bool	operator>(const QVector<T> &lhs, const QVector<T> &rhs)
bool	operator>(const QList<T> &lhs, const QList<T> &rhs)
bool	operator>(const QVarLengthArray<T, Prealloc1> &lhs, const QVarLengthArray<T, Prealloc2> &rhs)
bool	operator>=(const QVector<T> &lhs, const QVector<T> &rhs)
bool	operator>=(const QList<T> &lhs, const QList<T> &rhs)
bool	operator>=(const QVarLengthArray<T, Prealloc1> &lhs, const QVarLengthArray<T, Prealloc2> &rhs)
void	push_back(T &&value)
uint	qHash(const QVector<T> &key, uint seed)
uint	qHash(const QList<T> &key, uint seed)
uint	qHash(const QRegExp &key, uint seed)
uint	qHash(const QLocale &key, uint seed)
uint	qHash(const QRegularExpression &key, uint seed)
uint	qHash(const QUrlQuery &key, uint seed)
uint	qHash(const QVersionNumber &key, uint seed)
uint	qHash(const QMimeType &key, uint seed)
reverse_iterator	rbegin()
const_reverse_iterator	rbegin() const
reverse_iterator	rend()
const_reverse_iterator	rend() const

Class QXmlStreamStringRef:

void	swap(QXmlStreamStringRef &other)

Class QDBusMessage:

QDBusMessage createTargetedSignal(const QString &service, const QString &path, const QString &interface, const QString &name)

Class QColor:

QColor	fromRgba64(ushort r, ushort g, ushort b, ushort a)
QColor	fromRgba64(QRgba64 rgba64)
uint	qAlpha(QRgba64 rgba64)
uint	qBlue(QRgba64 rgba64)
uint	qGreen(QRgba64 rgba64)
QRgba64	qPremultiply(QRgba64 rgba64)
uint	qRed(QRgba64 rgba64)
QRgba64	qRgba64(quint16 r, quint16 g, quint16 b, quint16 a)
QRgba64	qRgba64(quint64 c)
QRgba64	qUnpremultiply(QRgba64 rgba64)
QRgba64	rgba64() const
void	setRgba64(QRgba64 rgba)

Class QFont:

uint	qHash(const QMatrix &key, uint seed)
uint	qHash(const QTransform &key, uint seed)

Class QGuiApplication:

bool	isFallbackSessionManagementEnabled()
void	setFallbackSessionManagementEnabled(bool enabled)

Class QIcon:

bool	isMask() const
void	setIsMask(bool isMask)

Class QImage:

QColor	pixelColor(const QPoint &position) const
QColor	pixelColor(int x, int y) const
void	setPixelColor(const QPoint &position, const QColor &color)
void	setPixelColor(int x, int y, const QColor &color)

Class QMatrix:

uint	qHash(const QMatrix &key, uint seed)
uint	qHash(const QTransform &key, uint seed)

Class QOpenGLFramebufferObject:

void	addColorAttachment(const QSize &size, GLenum internalFormat)
void	addColorAttachment(int width, int height, GLenum internalFormat)
QVector<QSize>	sizes() const
GLuint	takeTexture(int colorAttachmentIndex)
QVector<GLuint>	textures() const
QImage	toImage(bool flipped, int colorAttachmentIndex) const

Class QPaintDevice:

qreal devicePixelRatioF() const

Class QPointingDeviceUniqueId:

uint	qHash(const QMatrix &key, uint seed)
uint	qHash(const QTransform &key, uint seed)

Class QRhiVertexInputBinding:

uint	qHash(const QMatrix &key, uint seed)
uint	qHash(const QTransform &key, uint seed)

Class QShaderKey:

uint	qHash(const QMatrix &key, uint seed)
uint	qHash(const QTransform &key, uint seed)

Class QStandardItem:

bool	isAutoTristate() const
bool	isUserTristate() const
void	setAutoTristate(bool tristate)
void	setUserTristate(bool tristate)

Class QTextLayout:

void	clearFormats()
QVector<FormatRange>	formats() const
void	setFormats(const QVector<FormatRange> &formats)

Class QTransform:

uint	qHash(const QTransform &key, uint seed)

Class QHostAddress:

bool	isMulticast() const
void	swap(QHostAddress &other)

Class QNetworkReply:

void	redirected(const QUrl &url)

Class QNetworkRequest:

int	maximumRedirectsAllowed() const
void	setMaximumRedirectsAllowed(int maxRedirectsAllowed)

Class QWindowsWindowFunctions:

void	setHasBorderInFullScreen(QWindow *window, bool border)
const int	setHasBorderInFullScreenIdentifier()

Class QMainWindow:

void	resizeDocks(const QList<QDockWidget > &docks, const QList<int> &sizes, Qt::Orientation orientation*)

Class QMenu:

QAction *	addAction(const QString &text, Functor functor, const QKeySequence &shortcut)
QAction *	addAction(const QString &text, const QObject *context, Functor functor, const QKeySequence &shortcut)
QAction *	addAction(const QIcon &icon, const QString &text, Functor functor, const QKeySequence &shortcut)
QAction *	addAction(const QIcon &icon, const QString &text, const QObject *context, Functor functor, const QKeySequence &shortcut)

Class QSizePolicy:

uint	qHash(QSizePolicy key, uint seed)

Class QToolBar:

QAction *	addAction(const QString &text, Functor functor)
QAction *	addAction(const QString &text, const QObject *context, Functor functor)
QAction *	addAction(const QIcon &icon, const QString &text, Functor functor)
QAction *	addAction(const QIcon &icon, const QString &text, const QObject *context, Functor functor)

Class QJSEngine:

void	installExtensions(Extensions extensions, const QJSValue &object)

Class QQmlDebuggingEnabler:

bool	connectToLocalDebugger(const QString &socketFileName, StartMode mode)

Class QQuickTextureFactory:

QQuickTextureFactory * textureFactoryForImage(const QImage &image)

Class QWebSocket:

void	open(const QNetworkRequest &request)
QNetworkRequest	request() const

Class QBluetoothSocket:

QBluetooth::SecurityFlags	preferredSecurityFlags() const
void	setPreferredSecurityFlags(QBluetooth::SecurityFlags flags)

Class QMediaPlayer:

void	audioRoleChanged(QAudio::Role role)
QList<QAudio::Role>	supportedAudioRoles() const

New Global Functions

bool	operator<(const QVarLengthArray<T, Prealloc1> &lhs, const QVarLengthArray<T, Prealloc2> &rhs)
bool	operator<(const QList<T> &lhs, const QList<T> &rhs)
bool	operator<(const QVector<T> &lhs, const QVector<T> &rhs)
bool	operator<=(const QVarLengthArray<T, Prealloc1> &lhs, const QVarLengthArray<T, Prealloc2> &rhs)
bool	operator<=(const QList<T> &lhs, const QList<T> &rhs)
bool	operator<=(const QVector<T> &lhs, const QVector<T> &rhs)
bool	operator>(const QVarLengthArray<T, Prealloc1> &lhs, const QVarLengthArray<T, Prealloc2> &rhs)
bool	operator>(const QList<T> &lhs, const QList<T> &rhs)
bool	operator>(const QVector<T> &lhs, const QVector<T> &rhs)
bool	operator>=(const QVarLengthArray<T, Prealloc1> &lhs, const QVarLengthArray<T, Prealloc2> &rhs)
bool	operator>=(const QList<T> &lhs, const QList<T> &rhs)
bool	operator>=(const QVector<T> &lhs, const QVector<T> &rhs)
uint	qAlpha(QRgba64 rgba64)
uint	qBlue(QRgba64 rgba64)
uint	qCountLeadingZeroBits(quint64 v)
uint	qCountLeadingZeroBits(quint16 v)
uint	qCountLeadingZeroBits(quint8 v)
uint	qCountLeadingZeroBits(quint64 v)
uint	qCountLeadingZeroBits(quint16 v)
uint	qCountLeadingZeroBits(quint8 v)
uint	qCountLeadingZeroBits(quint32 v)
uint	qCountTrailingZeroBits(quint64 v)
uint	qCountTrailingZeroBits(quint16 v)
uint	qCountTrailingZeroBits(quint32 v)
uint	qCountTrailingZeroBits(quint8 v)
uint	qCountTrailingZeroBits(quint64 v)
uint	qCountTrailingZeroBits(quint16 v)
uint	qCountTrailingZeroBits(quint32 v)
uint	qCountTrailingZeroBits(quint8 v)
int	qGlobalQHashSeed()
uint	qGreen(QRgba64 rgba64)
uint	qHash(QSizePolicy key, uint seed)
uint	qHash(const QTransform &key, uint seed)
uint	qHash(const QMatrix &key, uint seed)
uint	qHash(const QKeySequence &key, uint seed)
uint	qHash(const QMimeType &key, uint seed)
uint	qHash(const QVersionNumber &key, uint seed)
uint	qHash(const QUrlQuery &key, uint seed)
uint	qHash(const QRegularExpression &key, uint seed)
uint	qHash(const QLocale &key, uint seed)
uint	qHash(const QRegExp &key, uint seed)
uint	qHash(const QList<T> &key, uint seed)
uint	qHash(const QVector<T> &key, uint seed)
QRgba64	qPremultiply(QRgba64 rgba64)
uint	qRed(QRgba64 rgba64)
QRgba64	qRgba64(quint64 c)
QRgba64	qRgba64(quint16 r, quint16 g, quint16 b, quint16 a)
void	qSetGlobalQHashSeed(int newSeed)
QRgba64	qUnpremultiply(QRgba64 rgba64)

New Macros

	QTRY_VERIFY2(condition, message)
	QTRY_VERIFY2(condition, message)
	QTRY_VERIFY2_WITH_TIMEOUT(condition, message, timeout)
	QTRY_VERIFY2_WITH_TIMEOUT(condition, message, timeout)
	QT_NO_PROCESS_COMBINED_ARGUMENT_START
	QT_NO_PROCESS_COMBINED_ARGUMENT_START

New Enum Types

enum	Role { UnknownRole, MusicRole, VideoRole, VoiceCommunicationRole, AlarmRole, …, CustomRole }
enum	OptionsAfterPositionalArgumentsMode { ParseAsOptions, ParseAsPositionalArguments }
enum	EnterKeyType { EnterKeyDefault, EnterKeyReturn, EnterKeyDone, EnterKeyGo, EnterKeySend, …, EnterKeyPrevious }

New Type Aliases

typedef	const_reverse_iterator
typedef	reverse_iterator
typedef	const_reverse_iterator
typedef	reverse_iterator
typedef	const_reverse_iterator
typedef	reverse_iterator
`(obsolete)` typedef	const_reverse_iterator
`(obsolete)` typedef	reverse_iterator
typedef	const_reverse_iterator
typedef	reverse_iterator
typedef	const_reverse_iterator
typedef	reverse_iterator
typedef	const_reverse_iterator
typedef	reverse_iterator

New Properties

supportedSchemes : const
audioRole : const
mirrorVertically : const
showIsMaximized : const

New QML Types

A: AbstractPhysicalDevice

E: EnterKey

L: Light; LogicalDevice

P: Playlist; PlaylistItem

Q: QuaternionAnimation

T: Transform

New QML Properties

	audioRole
	audioRole
	audioRole
	bottomPadding
	bottomPadding
	bottomPadding
	bottomPadding
	bottomPadding
	bottomPadding
	bottomPadding
	color
	font.styleName
	font.styleName
	font.styleName
	layer.textureMirroring
	leftPadding
	leftPadding
	leftPadding
	leftPadding
	leftPadding
	leftPadding
	leftPadding
	nativeText
	padding
	padding
	padding
	padding
	padding
	padding
	padding
	playlist
	playlist
	playlist
	portableText
	rightPadding
	rightPadding
	rightPadding
	rightPadding
	rightPadding
	rightPadding
	rightPadding
	textureMirroring
	topPadding
	topPadding
	topPadding
	topPadding
	topPadding
	topPadding
	topPadding
	visibleRegion

New QML Signals

editingFinished()

New QML Methods

	append()
	clear()
	get()
	indexOf()
	insert()
	move()
	remove()
	supportedAudioRoles()
	supportedAudioRoles()
	supportedAudioRoles()

Contents