New Classes and Functions in Qt 5.8

Qt 5.9.0 Reference Documentation

New Classes and Functions in Qt 5.8

This page contains a comprehensive list of all new classes and functions introduced in Qt 5.8. Links to new APIs in previous Qt 5 releases are found at the bottom of this page.

New Namespaces
New Classes
New Member Functions
New Functions in Namespaces
New Global Functions
New Macros
New Enum Types
New Typedefs
New Properties
New QML Types
New QML Properties
New QML Signals
New QML Methods

New Namespaces

namespace QScxmlExecutableContent

New Classes

A: QAbstractOAuth; QAbstractOAuth2; QAbstractOAuthReplyHandler; AssignmentInfo (QScxmlExecutableContent); QAxisAccumulator (Qt3DInput)

C: QCanBus; QCanBusDevice; QCanBusFactory; QCanBusFrame; QCandlestickLegendMarker; QCandlestickModelMapper; QCandlestickSeries; QCandlestickSet

D: QDeadlineTimer

E: EvaluatorInfo (QScxmlExecutableContent)

F: Filter (QCanBusDevice); ForeachLoopBody (QScxmlDataModel); ForeachInfo (QScxmlExecutableContent)

H: QHCandlestickModelMapper

I: InvokeInfo (QScxmlExecutableContent)

L: Loader (QScxmlCompiler)

M: QModbusClient; QModbusDataUnit; QModbusDevice; QModbusDeviceIdentification; QModbusExceptionResponse; QModbusPdu; QModbusReply; QModbusRequest; QModbusResponse; QModbusRtuSerialSlave; QModbusServer; QModbusTcpClient; QModbusTcpServer

N: QNetworkDatagram

O: QOAuth2AuthorizationCodeFlow; QOpenGLTextureBlitter

P: QPointingDeviceUniqueId; ParameterInfo (QScxmlExecutableContent); QPaintedTextureImage (Qt3DRender)

R: QRenderCapture (Qt3DRender); QRenderCaptureReply (Qt3DRender)

S: QSGImageNode; QSGRectangleNode; QSGRenderNode; QSGRendererInterface; QSctpServer; QSctpSocket; QScxmlDynamicScxmlServiceFactory; QScxmlInvokableService; QScxmlInvokableServiceFactory; QScxmlStaticScxmlServiceFactory; QScxmlTableData; QSslDiffieHellmanParameters

T: TimeStamp (QCanBusFrame); TakeRowResult (QFormLayout)

V: QVCandlestickModelMapper

New Member Functions

Class QBluetoothDeviceDiscoveryAgent:

	lowEnergyDiscoveryTimeout() const
	setLowEnergyDiscoveryTimeout(int timeout)
	start(DiscoveryMethods methods)
	supportedDiscoveryMethods()

Class QLowEnergyController:

remoteDeviceUuid() const

Class QLibraryInfo:

version()

Class QMetaEnum:

isScoped() const

Class QTimer:

	intervalAsDuration() const
	remainingTimeAsDuration() const
	singleShot(std::chrono::milliseconds msec, Qt::TimerType timerType, const QObject *receiver, const char *member)
	singleShot(std::chrono::milliseconds msec, const QObject *receiver, const char *member)
	start(std::chrono::milliseconds msec)

Class QMutex:

	try_lock()
	try_lock_for(std::chrono::duration<Rep, Period> duration)
	try_lock_until(std::chrono::time_point<Clock, Duration> timePoint)

Class QWaitCondition:

	notify_all()
	notify_one()

Class QCommandLineOption:

	flags() const
	setFlags(Flags flags)

Class QDateTime:

	currentSecsSinceEpoch()
	fromSecsSinceEpoch(qint64 secs, Qt::TimeSpec spec, int offsetSeconds)
	fromSecsSinceEpoch(qint64 secs, const QTimeZone &timeZone)
	setSecsSinceEpoch(qint64 secs)
	toSecsSinceEpoch() const

Class QLine:

center() const

Class QLineF:

center() const

Class QPointF:

	fromCGPoint(CGPoint point)
	toCGPoint() const

Class QPoint:

toCGPoint() const

Class QRect:

toCGRect() const

Class QRectF:

	fromCGRect(CGRect rect)
	toCGRect() const

Class QSize:

toCGSize() const

Class QSizeF:

	fromCGSize(CGSize size)
	toCGSize() const

Class QLatin1String:

	at(int pos) const
	left(int length) const
	mid(int start) const
	mid(int start, int length) const
	operator[](int pos) const
	right(int length) const

Class QStringRef:

	chop(int n)
	compare(const QByteArray &other, Qt::CaseSensitivity cs) const

Class QStringList:

join(QLatin1String separator) const

Class TouchPoint:

	rotation() const
	uniqueId() const

Class QOpenGLContext:

getProcAddress(const char *procName) const

Class QPlatformTheme:

virtual fileIcon(const QFileInfo &fileInfo, QPlatformTheme::IconOptions iconOptions) const

Class QColor:

	isValidColor(QLatin1String name)
	setNamedColor(QLatin1String name)

Class QRegion:

	begin() const
	cbegin() const
	cend() const
	crbegin() const
	crend() const
	end() const
	rbegin() const
	rend() const

Class QAbstractTextDocumentLayout:

	formatAt(const QPointF &pos) const
	imageAt(const QPointF &pos) const

Class QFontMetrics:

capHeight() const

Class QFontMetricsF:

capHeight() const

Class QRawFont:

capHeight() const

Class QNetworkAccessManager:

	sendCustomRequest(const QNetworkRequest &request, const QByteArray &verb, QHttpMultiPart *multiPart)
	sendCustomRequest(const QNetworkRequest &request, const QByteArray &verb, const QByteArray &data)

Class QHostAddress:

	isEqual(const QHostAddress &other, ConversionMode mode) const
	operator=(SpecialAddress address)
	setAddress(SpecialAddress address)

Class QNetworkProxyFactory:

usesSystemConfiguration()

Class QSslConfiguration:

	diffieHellmanParameters() const
	preSharedKeyIdentityHint() const
	setDiffieHellmanParameters(const QSslDiffieHellmanParameters &dhparams)
	setPreSharedKeyIdentityHint(const QByteArray &hint)

Class QJSEngine:

	newQMetaObject()
	newQMetaObject(const QMetaObject *metaObject)

Class QJSValue:

	isQMetaObject() const
	toQMetaObject() const

Class QQmlEngine:

exit(int retCode)

Class QQuickWindow:

	createImageNode() const
	createNinePatchNode() const
	createRectangleNode() const
	rendererInterface() const
	setSceneGraphBackend(QSGRendererInterface::GraphicsApi api)
	setSceneGraphBackend(const QString &backend)

Class QSGEngine:

	createImageNode() const
	createNinePatchNode() const
	createRectangleNode() const
	rendererInterface() const

Class QSerialPort:

errorOccurred(QSerialPort::SerialPortError error)

Class QQuickWebEngineProfile:

spellCheckLanguages() const

Class QWebEngineContextMenuData:

	misspelledWord() const
	spellCheckerSuggestions() const

Class QWebEngineDownloadItem:

type() const

Class QWebEnginePage:

	print(QPrinter *printer, FunctorOrLambda resultCallback)
	replaceMisspelledWord(const QString &replacement)
	save(const QString &filePath, QWebEngineDownloadItem::SavePageFormat format) const

Class QWebEngineProfile:

	isSpellCheckEnabled() const
	setSpellCheckEnabled(bool enable)
	setSpellCheckLanguages(const QStringList &languages)
	spellCheckLanguages() const

Class QWebSocket:

preSharedKeyAuthenticationRequired(QSslPreSharedKeyAuthenticator *authenticator)

Class QWebSocketServer:

preSharedKeyAuthenticationRequired(QSslPreSharedKeyAuthenticator *authenticator)

Class QFormLayout:

	removeRow(QLayout *layout)
	removeRow(QWidget *widget)
	removeRow(int row)
	takeRow(QLayout *layout)
	takeRow(QWidget *widget)
	takeRow(int row)

Class QUndoStack:

resetClean()

Class QMainWindow:

tabifiedDockWidgetActivated(QDockWidget *dockWidget)

Class QQuickStyle:

setFallbackStyle(const QString &style)

New Functions in Namespaces

	androidContext()
	convertVolume(qreal volume, VolumeScale from, VolumeScale to)
	createTouchDevice(QTouchDevice::DeviceType devType)
	toString(std::nullptr_t)

New Global Functions

	operator!=(QPointingDeviceUniqueId lhs, QPointingDeviceUniqueId rhs)
	operator!=(std::nullptr_t, const QWeakPointer<T> &rhs)
	operator!=(std::nullptr_t, const QSharedPointer<T> &rhs)
	operator!=(std::nullptr_t, const QScopedPointer<T, Cleanup> &rhs)
	operator!=(const QWeakPointer<T> &lhs, std::nullptr_t)
	operator!=(const QSharedPointer<T> &lhs, std::nullptr_t)
	operator!=(const QScopedPointer<T, Cleanup> &lhs, std::nullptr_t)
	operator<<(QDebug debug, const QSslDiffieHellmanParameters &dhparam)
	operator==(const QSslDiffieHellmanParameters &lhs, const QSslDiffieHellmanParameters &rhs)
	operator==(QPointingDeviceUniqueId lhs, QPointingDeviceUniqueId rhs)
	operator==(std::nullptr_t, const QWeakPointer<T> &rhs)
	operator==(std::nullptr_t, const QSharedPointer<T> &rhs)
	operator==(std::nullptr_t, const QScopedPointer<T, Cleanup> &rhs)
	operator==(const QWeakPointer<T> &lhs, std::nullptr_t)
	operator==(const QSharedPointer<T> &lhs, std::nullptr_t)
	operator==(const QScopedPointer<T, Cleanup> &lhs, std::nullptr_t)
	qHash(const QSslDiffieHellmanParameters &dhparam, uint seed)
	qHash(const QRawFont &font, uint seed)
	qHash(QPointingDeviceUniqueId key, uint seed)
	qHash(const QMultiHash<Key, T> &key, uint seed)
	qHash(const QHash<Key, T> &key, uint seed)
	qmlRegisterUncreatableMetaObject(const QMetaObject &staticMetaObject, const char *uri, int versionMajor, int versionMinor, const char *qmlName, const QString &reason)

New Macros

	QT_NO_NARROWING_CONVERSIONS_IN_CONNECT
	Q_ENUM_NS(...)
	Q_FALLTHROUGH()
	Q_FLAG_NS(...)
	Q_NAMESPACE

New Enum Types

enum	VolumeScale { LinearVolumeScale, CubicVolumeScale, LogarithmicVolumeScale, DecibelVolumeScale }
enum	DiscoveryMethod { NoMethod, ClassicMethod, LowEnergyMethod }
enum	ConversionModeFlag { ConvertV4MappedToIPv4, ConvertV4CompatToIPv4, ConvertUnspecifiedAddress, ConvertLocalHost, TolerantConversion, StrictConversion }
enum	LegendMarkerType { LegendMarkerTypeArea, LegendMarkerTypeBar, LegendMarkerTypePie, LegendMarkerTypeXY, LegendMarkerTypeBoxPlot, LegendMarkerTypeCandlestick }
enum	DownloadType { Attachment, DownloadAttribute, UserRequested, SavePage }

New Typedefs

typedef	QModbusDataUnitMap
typedef	const_iterator
typedef	const_reverse_iterator
typedef	ContainerId
typedef	EvaluatorId
typedef	InstructionId
typedef	StringId