Qt 5.15
New Classes and Functions in Qt 5.10
Qt 5.15.1 Reference Documentation

New Classes and Functions in Qt 5.10

This page contains a comprehensive list of all new classes and functions introduced in Qt 5.10. Links to new APIs in previous Qt 5 releases are found at the bottom of this page.

New Classes
New Member Functions
New Functions in Namespaces
New Global Functions
New Enum Types
New Type Aliases
New Properties
New QML Types
New QML Properties
New QML Methods

New Classes

A: QAbstractCameraController (Qt3DExtras); QAbstractSkeleton (Qt3DCore); QAndroidBinder; QAndroidIntent; QAndroidJniExceptionCleaner; QAndroidParcel; QAndroidService; QAndroidServiceConnection; QArmature (Qt3DCore)

B: QBEInteger; QBlitFramebuffer (Qt3DRender)

D: QDiffuseSpecularMaterial (Qt3DExtras)

G: QGeoPolygon

J: QJoint (Qt3DCore)

K: QKeyValueIterator

L: QLEInteger; QLineWidth (Qt3DRender)

N: QNodeCommand (Qt3DCore)

P: QPdfDocument; QPdfDocumentRenderOptions; QPdfPageNavigation; QPickLineEvent (Qt3DRender); QPickPointEvent (Qt3DRender); QProximityFilter (Qt3DRender)

R: QRandomGenerator; QRandomGenerator64

S: QSemaphoreReleaser; QShaderProgramBuilder (Qt3DRender); QSkeleton (Qt3DCore); QSkeletonLoader (Qt3DCore); QStringView

V: QVulkanDeviceFunctions; QVulkanFunctions; QVulkanInstance; QVulkanWindow; QVulkanWindowRenderer

W: QWaylandXdgPopupV6; QWaylandXdgShellV6; QWaylandXdgSurfaceV6; QWaylandXdgToplevelV6

New Member Functions

Class QAbstractFileEngine:

virtual bool	cloneTo(QAbstractFileEngine *target)
virtual bool	setFileTime(const QDateTime &newDate, QAbstractFileEngine::FileTime time)

Class QByteArray:

char	back() const
QByteRef	back()
QByteArray	chopped(int len) const
char	front() const
QByteRef	front()
void	shrink_to_fit()

Class FromBase64Result:

uint	qHash(QStringView key, uint seed)

Class QDebug:

QDebug & operator<<(QStringView s)

Class QFileDevice:

QDateTime	fileTime(QFileDevice::FileTime time) const
bool	setFileTime(const QDateTime &newDate, QFileDevice::FileTime fileTime)

Class QFileInfo:

QDateTime	birthTime() const
QDateTime	fileTime(QFile::FileTime time) const
QDateTime	metadataChangeTime() const

Class QHash:

QHash::const_key_value_iterator	constKeyValueBegin() const
QHash::const_key_value_iterator	constKeyValueEnd() const
QHash::key_value_iterator	keyValueBegin()
QHash::const_key_value_iterator	keyValueBegin() const
QHash::key_value_iterator	keyValueEnd()
QHash::const_key_value_iterator	keyValueEnd() const

Class QIODevice:

qint64 skip(qint64 maxSize)

Class QJsonArray:

QJsonArray &	operator=(QJsonArray &&other)
void	swap(QJsonArray &other)

Class QJsonDocument:

QJsonDocument &	operator=(QJsonDocument &&other)
const QJsonValue	operator[](const QString &key) const
const QJsonValue	operator[](QLatin1String key) const
const QJsonValue	operator[](int i) const
void	swap(QJsonDocument &other)

Class QJsonObject:

QJsonObject &	operator=(QJsonObject &&other)
void	swap(QJsonObject &other)

Class QJsonValue:

QJsonValue &	operator=(QJsonValue &&other)
const QJsonValue	operator[](const QString &key) const
const QJsonValue	operator[](QLatin1String key) const
const QJsonValue	operator[](int i) const
void	swap(QJsonValue &other)

Class QLatin1String:

QLatin1Char	back() const
QLatin1String::const_iterator	begin() const
QLatin1String::const_iterator	cbegin() const
QLatin1String::const_iterator	cend() const
void	chop(int length)
QLatin1String	chopped(int length) const
QLatin1String::const_reverse_iterator	crbegin() const
QLatin1String::const_reverse_iterator	crend() const
QLatin1String::const_iterator	end() const
QLatin1Char	front() const
bool	isEmpty() const
bool	isNull() const
QLatin1String::const_reverse_iterator	rbegin() const
QLatin1String::const_reverse_iterator	rend() const
QLatin1String	trimmed() const
void	truncate(int length)

Class QLocale:

QString	formattedDataSize(qint64 bytes, int precision, QLocale::DataSizeFormats format) const
double	toDouble(QStringView s, bool *ok) const
float	toFloat(QStringView s, bool *ok) const
int	toInt(QStringView s, bool *ok) const
qlonglong	toLongLong(QStringView s, bool *ok) const
short	toShort(QStringView s, bool *ok) const
QString	toString(const QDate &date, QStringView format) const
QString	toString(const QTime &time, QStringView format) const
QString	toString(const QDateTime &dateTime, QStringView format) const
uint	toUInt(QStringView s, bool *ok) const
qulonglong	toULongLong(QStringView s, bool *ok) const
ushort	toUShort(QStringView s, bool *ok) const

Class QMap:

QMap::const_key_value_iterator	constKeyValueBegin() const
QMap::const_key_value_iterator	constKeyValueEnd() const
QMap::key_value_iterator	keyValueBegin()
QMap::const_key_value_iterator	keyValueBegin() const
QMap::key_value_iterator	keyValueEnd()
QMap::const_key_value_iterator	keyValueEnd() const

Class QMetaObject:

bool	invokeMethod(QObject *context, Functor function, Qt::ConnectionType type, FunctorReturnType *ret)
bool	invokeMethod(QObject *context, Functor function, FunctorReturnType *ret)

Class QOperatingSystemVersion:

QOperatingSystemVersion::OSType currentType()

Class QProcess:

bool	startDetached(qint64 *pid)

Class QRegularExpressionMatch:

QString	captured(QStringView name) const
int	capturedEnd(QStringView name) const
int	capturedLength(QStringView name) const
QStringRef	capturedRef(QStringView name) const
int	capturedStart(QStringView name) const
QStringView	capturedView(int nth) const
QStringView	capturedView(QStringView name) const

Class QSettings:

bool	isAtomicSyncRequired() const
void	setAtomicSyncRequired(bool enable)

Class QString:

QString	arg(QStringView a, int fieldWidth, QChar fillChar) const
QString	arg(QLatin1String a, int fieldWidth, QChar fillChar) const
QChar	back() const
QCharRef	back()
QString	chopped(int len) const
bool	endsWith(QStringView str, Qt::CaseSensitivity cs) const
QChar	front() const
QCharRef	front()
void	shrink_to_fit()
bool	startsWith(QStringView str, Qt::CaseSensitivity cs) const

Class QStringList:

bool	contains(QLatin1String str, Qt::CaseSensitivity cs) const

Class QStringRef:

QChar	back() const
QStringRef	chopped(int len) const
bool	endsWith(QStringView str, Qt::CaseSensitivity cs) const
QChar	front() const
bool	startsWith(QStringView str, Qt::CaseSensitivity cs) const

Class QStringView:

uint	qHash(QStringView key, uint seed)

Class QTextCodec:

bool	canEncode(QStringView s) const
QByteArray	fromUnicode(QStringView str) const

Class QTextEncoder:

QByteArray fromUnicode(QStringView str)

Class QThread:

QThread *	create(Function &&f, Args &&... args)
QThread *	create(Function &&f)

Class QVarLengthArray:

void	shrink_to_fit()

Class QUuid:

QUuid	fromString(QStringView text)
QUuid	fromString(QLatin1String text)

Class QVector:

void	shrink_to_fit()

Class QVersionNumber:

QVersionNumber	fromString(QLatin1String string, int *suffixIndex)
QVersionNumber	fromString(QStringView string, int *suffixIndex)

Class QCursor:

bool	operator!=(const QCursor &lhs, const QCursor &rhs)
bool	operator==(const QCursor &lhs, const QCursor &rhs)

Class QColor:

bool	isValidColor(QStringView name)
void	setNamedColor(QStringView name)

Class QGuiApplication:

QScreen * screenAt(const QPoint &point)

Class QImage:

qsizetype sizeInBytes() const

Class QNativeGestureEvent:

const QTouchDevice * device() const

Class QPdfWriter:

QPagedPaintDevice::PdfVersion	pdfVersion() const
void	setPdfVersion(QPagedPaintDevice::PdfVersion version)

Class QPlatformCursor:

virtual void	clearOverrideCursor()
virtual void	setOverrideCursor(const QCursor &)

Class QPlatformIntegration:

virtual QPlatformVulkanInstance * createPlatformVulkanInstance(QVulkanInstance *instance) const

Class QPointingDeviceUniqueId:

bool	operator!=(const QCursor &lhs, const QCursor &rhs)
bool	operator==(const QCursor &lhs, const QCursor &rhs)

Class QPolygon:

bool	intersects(const QPolygon &p) const

Class QPolygonF:

bool	intersects(const QPolygonF &p) const

Class QRhiVertexInputBinding:

bool	operator!=(const QCursor &lhs, const QCursor &rhs)

Class QRhiViewport:

bool	operator==(const QCursor &lhs, const QCursor &rhs)

Class UniformBlock:

bool	operator==(const QCursor &lhs, const QCursor &rhs)

Class QSurfaceFormat:

QSurfaceFormat::ColorSpace	colorSpace() const
bool	operator!=(const QCursor &lhs, const QCursor &rhs)
bool	operator==(const QCursor &lhs, const QCursor &rhs)
void	setColorSpace(QSurfaceFormat::ColorSpace colorSpace)

Class FormatRange:

bool	operator!=(const QCursor &lhs, const QCursor &rhs)
bool	operator==(const QCursor &lhs, const QCursor &rhs)

Class QTextOption:

void	setTabStopDistance(qreal tabStopDistance)
qreal	tabStopDistance() const

Class QVector2D:

bool	operator!=(const QCursor &lhs, const QCursor &rhs)
bool	operator==(const QCursor &lhs, const QCursor &rhs)

Class QWindow:

void	setWindowStates(Qt::WindowStates state)
Qt::WindowStates	windowStates() const

Class QHostInfo:

QHostInfo &	operator=(QHostInfo &&other)
void	swap(QHostInfo &other)

Class QLocalServer:

qintptr socketDescriptor() const

Class QNetworkAccessManager:

void	enableStrictTransportSecurityStore(bool enabled, const QString &storeDir)
bool	isStrictTransportSecurityStoreEnabled() const

Class QAbstractOAuth2:

virtual QNetworkReply *	post(const QUrl &url, const QByteArray &data)
virtual QNetworkReply *	post(const QUrl &url, QHttpMultiPart *multiPart)
virtual QNetworkReply *	put(const QUrl &url, const QByteArray &data)
virtual QNetworkReply *	put(const QUrl &url, QHttpMultiPart *multiPart)

Class QGeoPath:

int	size() const

Class QGeoPolygon:

int	size() const

Class QPrinter:

QPagedPaintDevice::PdfVersion	pdfVersion() const
void	setPdfVersion(QPagedPaintDevice::PdfVersion version)

Class QQmlEngine:

void	retranslate()

Class QQuickItem:

bool	acceptTouchEvents() const
void	setAcceptTouchEvents(bool enabled)
void	setSize(const QSizeF &size)
QSizeF	size() const

Class QQuickWindow:

void	setTextRenderType(QQuickWindow::TextRenderType renderType)
QQuickWindow::TextRenderType	textRenderType()

Class QCanBusFrame:

bool	hasLocalEcho() const
void	setLocalEcho(bool echo)

Class QSqlError:

QSqlError &	operator=(QSqlError &&other)
void	swap(QSqlError &other)

Class QSqlQueryModel:

virtual QHash<int, QByteArray> roleNames() const override

Class QAbstractItemView:

bool	isPersistentEditorOpen(const QModelIndex &index) const

Class QLineEdit:

int	selectionEnd() const
int	selectionLength() const

Class QListWidget:

bool	isPersistentEditorOpen(QListWidgetItem *item) const

Class QOpenGLWidget:

void	setTextureFormat(GLenum texFormat)
GLenum	textureFormat() const

Class QTableWidget:

bool	isPersistentEditorOpen(QTableWidgetItem *item) const

Class QTreeWidget:

bool	isPersistentEditorOpen(QTreeWidgetItem *item, int column) const

Class QX11Info:

qint32	generatePeekerId()
bool	peekEventQueue(QX11Info::PeekerCallback peeker, void *peekerData, QX11Info::PeekOptions option, qint32 peekerId)
bool	removePeekerId(qint32 peekerId)

New Functions in Namespaces

bool	bindService(const QAndroidIntent &serviceIntent, const QAndroidServiceConnection &serviceConnection, QtAndroid::BindFlags flags)
QtAndroid::PermissionResult	checkPermission(const QString &permission)
void	hideSplashScreen(int duration)
void	keySequence(QWidget *widget, const QKeySequence &keySequence)
void	keySequence(QWindow *window, const QKeySequence &keySequence)
bool	qWaitFor(Functor predicate, int timeout)
void	requestPermissions(const QStringList &permissions, const QtAndroid::PermissionResultCallback &callbackFunc)
QtAndroid::PermissionResultMap	requestPermissionsSync(const QStringList &permissions, int timeoutMs)
bool	shouldShowRequestPermissionRationale(const QString &permission)

New Global Functions

bool	operator!=(const QCursor &lhs, const QCursor &rhs)
bool	operator==(const QCursor &lhs, const QCursor &rhs)
uint	qHash(QStringView key, uint seed)

New Enum Types

enum	FileTime { FileAccessTime, FileBirthTime, FileMetadataChangeTime, FileModificationTime }
enum	DataSizeFormat { DataSizeBase1000, DataSizeSIQuantifiers, DataSizeIecFormat, DataSizeTraditionalFormat, DataSizeSIFormat }
enum	Capability { OverrideCursor }
enum	TextRenderType { QtTextRendering, NativeTextRendering }
enum	Flag { NoDebugOutputRedirect }
enum	PeekOption { PeekDefault, PeekFromCachedIndex }
enum class	BindFlag { None, AutoCreate, DebugUnbind, NotForeground, AboveClient, …, ExternalService }
enum class	PermissionResult { Granted, Denied }

New Type Aliases

typedef	qint16_be
typedef	qint16_le
typedef	qint32_be
typedef	qint32_le
typedef	qint64_be
typedef	qint64_le
typedef	quint16_be
typedef	quint16_le
typedef	quint32_be
typedef	quint32_le
typedef	quint64_be
typedef	quint64_le
(alias)	qsizetype
typedef	const_key_value_iterator
typedef	key_value_iterator
(alias)	const_iterator
(alias)	const_reverse_iterator
(alias)	difference_type
(alias)	iterator
(alias)	reference
(alias)	reverse_iterator
(alias)	size_type
(alias)	value_type
typedef	const_key_value_iterator
typedef	key_value_iterator
typedef	PeekerCallback
typedef	qint16_be
typedef	qint16_le
typedef	qint32_be
typedef	qint32_le
typedef	qint64_be
typedef	qint64_le
(alias)	qsizetype
typedef	quint16_be
typedef	quint16_le
typedef	quint32_be
typedef	quint32_le
typedef	quint64_be
typedef	quint64_le

New Properties

shortcutVisibleInContextMenu : const
doubleStep : const
tabStopDistance : const
recursiveFilteringEnabled : const

showShortcutsInContextMenus : const
tabStopDistance : const
stackSize : const

New QML Types

A: AbstractSkeleton; Action; ActionGroup; Armature

B: BlitFramebuffer

C: ConicalGradient

D: DiffuseSpecularMaterial

J: Joint

L: LinearGradient; LineWidth

M: MenuBar; MenuBarItem; MultiPointHandler

O: Overlay

P: PointerDeviceHandler; PointerHandler; ProximityFilter

R: RadialGradient

S: ShaderProgramBuilder; Shape; ShapeGradient; ShapePath; Skeleton; SkeletonLoader

X: XdgPopupV6; XdgShellV6; XdgSurfaceV6; XdgToplevelV6

New QML Properties

	advance
	boundsMovement
	defaultSuffix
	font.kerning
	font.kerning
	font.kerning
	font.preferShaping
	font.preferShaping
	font.preferShaping
	layer.samples
	manufacturer
	model
	samples
	serialNumber
	supportedFocusPointModes
	tabStopDistance

New QML Methods

	addMapItemView()
	alignCoordinateToPoint()
	keySequence()
	polygon()
	polygon()
	removeMapItemView()
	setBearing()
	setPath()
	shapeToPolygon()

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