Qt Documentation

Qt 5.8
New Classes and Functions in Qt 5.7

New Classes and Functions in Qt 5.7

This page contains a comprehensive list of all new classes and functions introduced in Qt 5.7. Links to new APIs in previous Qt 5 releases are found at the bottom of this page.

New Classes

A: AddressInfo (QLowEnergyAdvertisingParameters); QAbstractActionInput (Qt3DInput); QAction (Qt3DInput); QActionInput (Qt3DInput); QAnalogAxisInput (Qt3DInput); QAxis (Qt3DInput); QAbstractFunctor (Qt3DRender); QAlphaCoverage (Qt3DRender); QAlphaTest (Qt3DRender)

B: QButtonAxisInput (Qt3DInput); QBlendEquation (Qt3DRender)

C: QConeGeometry (Qt3DExtras); QCuboidGeometry (Qt3DExtras); QCylinderGeometry (Qt3DExtras); QClearBuffers (Qt3DRender); QColorMask (Qt3DRender); QComputeCommand (Qt3DRender); QCullFace (Qt3DRender)

D: QDiffuseMapMaterial (Qt3DExtras); QDiffuseSpecularMapMaterial (Qt3DExtras); QDepthTest (Qt3DRender); QDirectionalLight (Qt3DRender); QDispatchCompute (Qt3DRender); QDithering (Qt3DRender)

E: QEffect (Qt3DRender)

F: QFirstPersonCameraController (Qt3DExtras); QForwardRenderer (Qt3DExtras); QFrontFace (Qt3DRender); QFrustumCulling (Qt3DRender)

G: QGoochMaterial (Qt3DExtras)

I: QInputChord (Qt3DInput); QInputSequence (Qt3DInput); QInputSettings (Qt3DInput)

L: QLowEnergyAdvertisingData; QLowEnergyAdvertisingParameters; QLowEnergyCharacteristicData; QLowEnergyConnectionParameters; QLowEnergyDescriptorData; QLowEnergyServiceData; QLogicAspect (Qt3DLogic)

M: QMultiSampleAntiAliasing (Qt3DRender)

N: QNodeCreatedChange (Qt3DCore); QNodeDestroyedChange (Qt3DCore); QNormalDiffuseMapAlphaMaterial (Qt3DExtras); QNormalDiffuseMapMaterial (Qt3DExtras); QNormalDiffuseSpecularMapMaterial (Qt3DExtras); QNoDepthMask (Qt3DRender)

O: QOrbitCameraController (Qt3DExtras)

P: QPerVertexColorMaterial (Qt3DExtras); QPhongAlphaMaterial (Qt3DExtras); QPhongMaterial (Qt3DExtras); QPlaneGeometry (Qt3DExtras); QPickEvent (Qt3DRender); QPickTriangleEvent (Qt3DRender); QPickingSettings (Qt3DRender); QPointSize (Qt3DRender); QPolygonOffset (Qt3DRender)

Q: QQuickStyle

R: QRenderAspect (Qt3DRender); QRenderPass (Qt3DRender); QRenderPassFilter (Qt3DRender); QRenderSettings (Qt3DRender); QRenderState (Qt3DRender); QRenderSurfaceSelector (Qt3DRender); QRenderTarget (Qt3DRender); QRenderTargetOutput (Qt3DRender); QRenderTargetSelector (Qt3DRender)

T: QTorusGeometry (Qt3DExtras); QTechnique (Qt3DRender); QTechniqueFilter (Qt3DRender); QTextureData (Qt3DRender); QTextureImageDataGenerator (Qt3DRender)

V: QViewport (Qt3DRender)

W: QWebEngineContextMenuData

New Member Functions

Class QAndroidJniObject:

QAndroidJniObject fromLocalRef(jobject localRef)

Class QUtf8:

QChar * convertToUnicode(QChar *buffer, const char *chars, int len)

Class QFlags:

QFlags & setFlag(Enum flag, bool on = true)

Class QDataStream:

void	abortTransaction()
bool	commitTransaction()
void	rollbackTransaction()
void	startTransaction()

Class QIODevice:

void	channelBytesWritten(int channel, qint64 bytes)
void	channelReadyRead(int channel)
void	commitTransaction()
int	currentReadChannel() const
int	currentWriteChannel() const
bool	isTransactionStarted() const
int	readChannelCount() const
void	rollbackTransaction()
void	setCurrentReadChannel(int channel)
void	setCurrentWriteChannel(int channel)
void	startTransaction()
int	writeChannelCount() const

Class QProcess:

CreateProcessArgumentModifier	createProcessArgumentsModifier() const
void	setCreateProcessArgumentsModifier(CreateProcessArgumentModifier modifier)

Class QJsonObject:

const_iterator	constFind(QLatin1String key) const
bool	contains(QLatin1String key) const
iterator	find(QLatin1String key)
const_iterator	find(QLatin1String key) const
QJsonValue	operator[](QLatin1String key) const
QJsonValueRef	operator[](QLatin1String key)
QJsonValue	value(QLatin1String key) const

Class QMetaObject:

bool	inherits(const QMetaObject *metaObject) const

Class QUuid:

QUuid	fromCFUUID(CFUUIDRef uuid)
QUuid	fromNSUUID(const NSUUID *uuid)
CFUUIDRef	toCFUUID() const
NSUUID *	toNSUUID() const

Class QByteArray:

QByteArray &	append(int count, char ch)
QByteArray &	insert(int i, int count, char ch)
QByteArray &	prepend(int count, char ch)

Class QHash:

QPair<iterator, iterator>	equal_range(const Key &key)
QPair<const_iterator, const_iterator>	equal_range(const Key &key) const
iterator	erase(const_iterator pos)

Class QLocale:

QString toCurrencyString(double value, const QString &symbol, int precision) const

Class QRect:

QRect transposed() const

Class QRectF:

QRectF transposed() const

Class QSet:

iterator erase(const_iterator pos)

Class QString:

void	resize(int size, QChar fillChar)

Class QStringRef:

const_reverse_iterator	crbegin() const
const_reverse_iterator	crend() const
QChar	operator[](int position) const
const_reverse_iterator	rbegin() const
const_reverse_iterator	rend() const

Class QIconEngine:

bool	isNull() const

Class Key:

bool	isValid() const

Class QWheelEvent:

bool	inverted() const

Class QPlatformIntegration:

virtual void beep() const

Class QOpenGLFramebufferObject:

void	blitFramebuffer(QOpenGLFramebufferObject *target, const QRect &targetRect, QOpenGLFramebufferObject *source, const QRect &sourceRect, GLbitfield buffers, GLenum filter, int readColorAttachmentIndex, int drawColorAttachmentIndex, FramebufferRestorePolicy restorePolicy)

Class QNetworkInterface:

int	interfaceIndexFromName(const QString &name)
QString	interfaceNameFromIndex(int index)

Class QSslConfiguration:

QSslKey ephemeralServerKey() const

Class QWindowsWindowFunctions:

void	setWindowActivationBehavior(WindowActivationBehavior behavior)
const QByteArray	setWindowActivationBehaviorIdentifier()

Class QMenu:

void	showTearOffMenu()
void	showTearOffMenu(const QPoint &pos)

Class QBluetoothUuid:

bool	operator!=(const QBluetoothUuid &other) const

Class QLowEnergyController:

QLowEnergyService *	addService(const QLowEnergyServiceData &service, QObject *parent = nullptr)
void	connectionUpdated(const QLowEnergyConnectionParameters &newParameters)
QLowEnergyController *	createCentral(const QBluetoothDeviceInfo &remoteDevice, QObject *parent = nullptr)
QLowEnergyController *	createPeripheral(QObject *parent = nullptr)
void	requestConnectionUpdate(const QLowEnergyConnectionParameters &parameters)
Role	role() const
void	startAdvertising(const QLowEnergyAdvertisingParameters &parameters, const QLowEnergyAdvertisingData &advertisingData, const QLowEnergyAdvertisingData &scanResponseData = QLowEnergyAdvertisingData())
void	stopAdvertising()

Class QQmlDebuggingEnabler:

bool	startDebugConnector(const QString &pluginName, const QVariantHash &configuration = QVariantHash())

Class QQmlFileSelector:

QFileSelector * selector() const

Class QQuickItem:

bool	isAncestorOf(const QQuickItem *child) const
QPointF	mapFromGlobal(const QPointF &point) const
QPointF	mapToGlobal(const QPointF &point) const

Class QMediaPlaylistProvider:

virtual bool moveMedia(int from, int to)

Class QMediaPlaylist:

bool	moveMedia(int from, int to)

Class QModbusRtuSerialMaster:

int	interFrameDelay() const
void	setInterFrameDelay(int microseconds)

Class QQuickWebEngineProfile:

void	clearHttpCache()

Class QWebEngineDownloadItem:

SavePageFormat	savePageFormat() const
void	setSavePageFormat(SavePageFormat format)

Class QWebEngineProfile:

void	clearHttpCache()

Class QWebEnginePage:

void	audioMutedChanged(bool muted)
const QWebEngineContextMenuData &	contextMenuData() const
void	iconChanged(const QIcon &icon)
void	printToPdf(const QString &filePath, const QPageLayout &pageLayout = QPageLayout( QPageSize( QPageSize::A4 ), QPageLayout::Portrait, QMarginsF() ))
void	printToPdf(FunctorOrLambda resultCallback, const QPageLayout &pageLayout = QPageLayout( QPageSize( QPageSize::A4 ), QPageLayout::Portrait, QMarginsF() ))
void	recentlyAudibleChanged(bool recentlyAudible)
void	runJavaScript(const QString &scriptSource, quint32 worldId)
void	runJavaScript(const QString &scriptSource, quint32 worldId, FunctorOrLambda resultCallback)
void	setWebChannel(QWebChannel *channel, uint worldId)

Class QWebEngineView:

void	iconChanged(const QIcon &icon)

Class QX11Info:

bool	isCompositingManagerRunning(int screen = -1)

New Functions in Namespaces

QAndroidJniObject	androidService()
void	hideSplashScreen()
void	runOnAndroidThread(const Runnable &runnable)
void	runOnAndroidThreadSync(const Runnable &runnable, int timeoutMs = INT_MAX)

New Global Functions

QDebug	operator<<(QDebug debug, const QSharedPointer<T> &ptr)
QDebug	operator<<(QDebug stream, const std::multimap<Key, T, Compare, Alloc> &map)
QDebug	operator<<(QDebug stream, const std::map<Key, T, Compare, Alloc> &map)
QDebug	operator<<(QDebug stream, const std::list<T, Alloc> &list)
QDebug	operator<<(QDebug stream, const std::vector<T, Alloc> &vector)
QtPrivate::QAddConst<T>::Type &	qAsConst(T &t)
auto	qConstOverload(T memberFunctionPointer)
uint	qHash(const std::pair<T1, T2> &key, uint seed = 0)
auto	qNonConstOverload(T memberFunctionPointer)
auto	qOverload(T functionPointer)

New Macros

const wchar_t * qUtf16Printable(const QString &str)

New Enum Types

enum	AttAccessConstraint { AttAuthorizationRequired, AttAuthenticationRequired, AttEncryptionRequired }
enum	FloatingPointPrecisionOption { FloatingPointShortest }
enum	Role { CentralRole, PeripheralRole }
enum	FramebufferRestorePolicy { DontRestoreFramebufferBinding, RestoreFramebufferBindingToDefault, RestoreFrameBufferBinding }
enum	SavePageFormat { UnknownSaveFormat, SingleHtmlSaveFormat, CompleteHtmlSaveFormat, MimeHtmlSaveFormat }
enum	WindowActivationBehavior { DefaultActivateWindow, AlwaysActivateWindow }

New Typedefs

typedef	const_reverse_iterator
typedef	SetWindowActivationBehaviorType

New Properties

desktopFileName : QString
audioMuted : bool
audioMuted : bool
contentsSize : const QSizeF

icon : const QIcon
recentlyAudible : const bool
scrollPosition : const QPointF
icon : const QIcon

New QML Types

A: AbstractActionInput; AbstractButton; Action; ActionInput; AlphaCoverage; AlphaTest; AnalogAxisInput; ApplicationWindow; Axis

B: BusyIndicator; Button; ButtonAxisInput; ButtonGroup

C: CheckBox; CheckDelegate; ClearBuffers; ColorMask; ComboBox; ComputeCommand; Container; Control; CullFace

D: DepthTest; Dial; DiffuseMapMaterial; DiffuseSpecularMapMaterial; DirectionalLight; DispatchCompute; Dithering; Drawer

E: Effect

F: FirstPersonCameraController; ForwardRenderer; Frame; FrontFace; FrustumCulling

G: GoochMaterial; GroupBox

I: InputChord; InputSequence; InputSettings; ItemDelegate

L: Label

M: Menu; MenuItem; MultiSampleAntiAliasing

N: NoDepthMask; NormalDiffuseMapAlphaMaterial; NormalDiffuseMapMaterial; NormalDiffuseSpecularMapMaterial

O: OrbitCameraController

P: Page; PageIndicator; Pane; PerVertexColorMaterial; PhongAlphaMaterial; PhongMaterial; PickingSettings; PointSize; PolygonOffset; Popup; ProgressBar

R: RadioButton; RadioDelegate; RangeSlider; RenderPass; RenderSettings; RenderState; RenderSurfaceSelector; RenderTarget; RenderTargetOutput; RenderTargetSelector

S: SceneLoader; ScissorTest; ScrollBar; ScrollIndicator; SeamlessCubemap; Slider; SortPolicy; SpinBox; StackView; StencilMask; StencilOperation; StencilOperationArguments; StencilTest; StencilTestArguments; SwipeDelegate; SwipeView; Switch; SwitchDelegate

T: TabBar; TabButton; Technique; TextArea; TextField; ToolBar; ToolButton; ToolTip; Tumbler

V: Viewport

New QML Properties

	brightness
	caseSensitive
	copyrightsVisible
	enabled
	invert
	keyNavigationEnabled
	keyNavigationEnabled
	movementDirection
	preeditText
	preeditText
	source
	window

New QML Methods

object	mapFromGlobal(real x, real y)
object	mapToGlobal(real x, real y)
bool	addItems(sources)
bool	insertItems(index, sources)
bool	moveItem(from, to)
bool	removeItems(int start, int end)
	clear()
	clear()

Additions to Other Qt 5 Releases

© 2017 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.