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All Qt Classes (main index)

This is a list of all Qt classes. For a list of the classes provided for compatibility with Qt3, see Qt3 Support Classes. For classes that have been deprecated, see the Obsolete Classes list.

A  QAbstractAnimation QFont QNetworkCookie QStyleOptionTabV2
QAbstractButton QFontComboBox QNetworkCookieJar QStyleOptionTabV3
QAbstractEventDispatcher QFontDatabase QNetworkDiskCache QStyleOptionTabWidgetFrame
QAbstractExtensionFactory QFontDialog QNetworkInterface QStyleOptionTabWidgetFrameV2
QAbstractExtensionManager QFontEngineInfo QNetworkProxy QStyleOptionTitleBar
QAbstractFileEngine QFontEnginePlugin QNetworkProxyFactory QStyleOptionToolBar
QAbstractFileEngineHandler QFontInfo QNetworkProxyQuery QStyleOptionToolBox
QAbstractFileEngineIterator QFontMetrics QNetworkReply QStyleOptionToolBoxV2
QAbstractFontEngine QFontMetricsF QNetworkRequest QStyleOptionToolButton
QAbstractFormBuilder QFormBuilder Notifier (Phonon::BackendCapabilities) QStyleOptionViewItem
QAbstractGraphicsShapeItem QFormLayout O  QObject QStyleOptionViewItemV2
QAbstractItemDelegate QFrame QObjectCleanupHandler QStyleOptionViewItemV3
QAbstractItemModel QFSFileEngine ObjectDescription (Phonon) QStyleOptionViewItemV4
QAbstractItemView QFtp P  QPageSetupDialog QStylePainter
QAbstractListModel QFuture QPaintDevice QStylePlugin
QAbstractMessageHandler QFutureIterator QPaintEngine QSvgGenerator
QAbstractNetworkCache QFutureSynchronizer QPaintEngineState QSvgRenderer
QAbstractPrintDialog QFutureWatcher QPainter QSvgWidget
QAbstractProxyModel G  QGenericArgument QPainterPath QSwipeGesture
QAbstractScrollArea QGenericMatrix QPainterPathStroker QSymbianEvent
QAbstractSlider QGenericReturnArgument QPaintEvent QSyntaxHighlighter
QAbstractSocket QGesture QPair QSysInfo
QAbstractSpinBox QGestureEvent QPalette QSystemLocale
QAbstractState QGestureRecognizer QPanGesture QSystemSemaphore
QAbstractTableModel QGLColormap QParallelAnimationGroup QSystemTrayIcon
QAbstractTextDocumentLayout QGLContext Path (Phonon) T  QTabBar
QAbstractTransition QGLFormat QPauseAnimation QTabletEvent
QAbstractUriResolver QGLFramebufferObject QPen QTableView
QAbstractVideoBuffer QGLFramebufferObjectFormat QPersistentModelIndex QTableWidget
QAbstractVideoSurface QGLPixelBuffer QPicture QTableWidgetItem
QAbstractXmlNodeModel QGLShader QPinchGesture QTableWidgetSelectionRange
QAbstractXmlReceiver QGLShaderProgram QPixmap QTabWidget
QAccessible QGLWidget QPixmapCache QTapAndHoldGesture
QAccessibleBridge QGradient QPlainTextDocumentLayout QTapGesture
QAccessibleBridgePlugin QGraphicsAnchor QPlainTextEdit QTcpServer
QAccessibleEvent QGraphicsAnchorLayout QPlastiqueStyle QTcpSocket
QAccessibleInterface QGraphicsBlurEffect QPluginLoader QTemporaryFile
QAccessibleObject QGraphicsColorizeEffect QPoint QTestEventList
QAccessiblePlugin QGraphicsDropShadowEffect QPointer QTextBlock
QAccessibleWidget QGraphicsEffect QPointF QTextBlockFormat
QAction QGraphicsEllipseItem QPolygon QTextBlockGroup
QActionEvent QGraphicsGridLayout QPolygonF QTextBlockUserData
QActionGroup QGraphicsItem QPrintDialog QTextBoundaryFinder
QAnimationGroup QGraphicsItemAnimation QPrintEngine QTextBrowser
QApplication QGraphicsItemGroup QPrinter QTextCharFormat
QAtomicInt QGraphicsLayout QPrinterInfo QTextCodec
QAtomicPointer QGraphicsLayoutItem QPrintPreviewDialog QTextCodecPlugin
QAudioDeviceInfo QGraphicsLinearLayout QPrintPreviewWidget QTextCursor
QAudioFormat QGraphicsLineItem QProcess QTextDecoder
QAudioInput QGraphicsObject QProcessEnvironment QTextDocument
QAudioOutput QGraphicsOpacityEffect QProgressBar QTextDocumentFragment
QAuthenticator QGraphicsPathItem QProgressDialog QTextDocumentWriter
QAxAggregated QGraphicsPixmapItem QPropertyAnimation QTextEdit
QAxBase QGraphicsPolygonItem QProxyScreen QTextEncoder
QAxBindable QGraphicsProxyWidget QProxyScreenCursor QTextFormat
QAxFactory QGraphicsRectItem QProxyStyle QTextFragment
QAxObject QGraphicsRotation QPushButton QTextFrame
QAxScript QGraphicsScale Q  QTouchEventSequence (QTest) QTextFrameFormat
QAxScriptEngine QGraphicsScene QQuaternion QTextImageFormat
QAxScriptManager QGraphicsSceneContextMenuEvent QQueue QTextInlineObject
QAxWidget QGraphicsSceneDragDropEvent R  QRadialGradient QTextItem
B  QBasicTimer QGraphicsSceneEvent QRadioButton QTextLayout
QBitArray QGraphicsSceneHelpEvent QRasterPaintEngine QTextLength
QBitmap QGraphicsSceneHoverEvent QReadLocker QTextLine
QBoxLayout QGraphicsSceneMouseEvent QReadWriteLock QTextList
QBrush QGraphicsSceneMoveEvent QRect QTextListFormat
QBuffer QGraphicsSceneResizeEvent QRectF QTextObject
QButtonGroup QGraphicsSceneWheelEvent QRegExp QTextObjectInterface
QByteArray QGraphicsSimpleTextItem QRegExpValidator QTextOption
QByteArrayMatcher QGraphicsSvgItem QRegion QTextStream
C  QCache QGraphicsTextItem QResizeEvent QTextTable
QCalendarWidget QGraphicsTransform QResource QTextTableCell
QCDEStyle QGraphicsView QRubberBand QTextTableCellFormat
QChar QGraphicsWebView QRunnable QTextTableFormat
QCheckBox QGraphicsWidget S  QS60MainApplication QThread
QChildEvent QGridLayout QS60MainAppUi QThreadPool
QCleanlooksStyle QGroupBox QS60MainDocument QThreadStorage
QClipboard QGtkStyle QS60Style QTileRules
QCloseEvent H  QHash QScopedPointer QTime
QColor QHashIterator QScreen QTimeEdit
QColorDialog QHBoxLayout QScreenCursor QTimeLine
QColormap QHeaderView QScreenDriverFactory QTimer
QColumnView QHelpContentItem QScreenDriverPlugin QTimerEvent
QComboBox QHelpContentModel QScriptable QToolBar
QCommandLinkButton QHelpContentWidget QScriptClass QToolBox
QCommonStyle QHelpEngine QScriptClassPropertyIterator QToolButton
QCompleter QHelpEngineCore QScriptContext QToolTip
QConicalGradient QHelpEvent QScriptContextInfo QTouchEvent
QContextMenuEvent QHelpIndexModel QScriptEngine QTransform
QContiguousCache QHelpIndexWidget QScriptEngineAgent QTranslator
QCopChannel QHelpSearchEngine QScriptEngineDebugger QTreeView
QCoreApplication QHelpSearchQuery QScriptExtensionPlugin QTreeWidget
QCryptographicHash QHelpSearchQueryWidget QScriptString QTreeWidgetItem
QCursor QHelpSearchResultWidget QScriptSyntaxCheckResult QTreeWidgetItemIterator
QCustomRasterPaintDevice QHideEvent QScriptValue U  QUdpSocket
D  QDataStream QHistoryState QScriptValueIterator QUiLoader
QDataWidgetMapper QHostAddress QScrollArea QUndoCommand
QDate QHostInfo QScrollBar QUndoGroup
QDateEdit QHoverEvent SeekSlider (Phonon) QUndoStack
QDateTime I  QIcon QSemaphore QUndoView
QDateTimeEdit QIconDragEvent QSequentialAnimationGroup UnhandledException (QtConcurrent)
QDBusAbstractAdaptor QIconEngine QSessionManager QUrl
QDBusAbstractInterface QIconEnginePlugin QSet QUrlInfo
QDBusArgument QIconEnginePluginV2 QSetIterator QUuid
QDBusConnection QIconEngineV2 QSettings V  QValidator
QDBusConnectionInterface QImage QSharedData QVariant
QDBusContext QImageIOHandler QSharedDataPointer QVariantAnimation
QDBusError QImageIOPlugin QSharedMemory QVarLengthArray
QDBusInterface QImageReader QSharedPointer QVBoxLayout
QDBusMessage QImageWriter QShortcut QVector
QDBusObjectPath QInputContext QShortcutEvent QVector2D
QDBusPendingCall QInputContextFactory QShowEvent QVector3D
QDBusPendingCallWatcher QInputContextPlugin QSignalMapper QVector4D
QDBusPendingReply QInputDialog QSignalSpy QVectorIterator
QDBusReply QInputEvent QSignalTransition QVideoFrame
QDBusServer QInputMethodEvent QSimpleXmlNodeModel VideoPlayer (Phonon)
QDBusServiceWatcher QIntValidator QSize QVideoSurfaceFormat
QDBusSignature QIODevice QSizeF VideoWidget (Phonon)
QDBusVariant QItemDelegate QSizeGrip VolumeSlider (Phonon)
QDebug QItemEditorCreator QSizePolicy W  QWaitCondition
QDecoration QItemEditorCreatorBase QSlider QWeakPointer
QDecorationDefault QItemEditorFactory QSocketNotifier QWebDatabase
QDecorationFactory QItemSelection QSortFilterProxyModel QWebElement
QDecorationPlugin QItemSelectionModel QSound QWebElementCollection
QDesignerActionEditorInterface QItemSelectionRange QSourceLocation QWebFrame
QDesignerContainerExtension K  QKbdDriverFactory QSpacerItem QWebHistory
QDesignerCustomWidgetCollectionInterface QKbdDriverPlugin QSpinBox QWebHistoryInterface
QDesignerCustomWidgetInterface QKeyEvent QSplashScreen QWebHistoryItem
QDesignerDynamicPropertySheetExtension QKeyEventTransition QSplitter QWebHitTestResult
QDesignerFormEditorInterface QKeySequence QSplitterHandle QWebInspector
QDesignerFormWindowCursorInterface L  QLabel QSqlDatabase QWebPage
QDesignerFormWindowInterface QLatin1Char QSqlDriver QWebPluginFactory
QDesignerFormWindowManagerInterface QLatin1String QSqlDriverCreator QWebSecurityOrigin
QDesignerMemberSheetExtension QLayout QSqlDriverCreatorBase QWebSettings
QDesignerObjectInspectorInterface QLayoutItem QSqlDriverPlugin QWebView
QDesignerPropertyEditorInterface QLCDNumber QSqlError QWhatsThis
QDesignerPropertySheetExtension QLibrary QSqlField QWhatsThisClickedEvent
QDesignerTaskMenuExtension QLibraryInfo QSqlIndex QWheelEvent
QDesignerWidgetBoxInterface QLine QSqlQuery QWidget
QDesktopServices QLinearGradient QSqlQueryModel QWidgetAction
QDesktopWidget QLineEdit QSqlRecord QWidgetItem
QDial QLineF QSqlRelation QWindowsMime
QDialog QLinkedList QSqlRelationalDelegate QWindowsStyle
QDialogButtonBox QLinkedListIterator QSqlRelationalTableModel QWindowStateChangeEvent
QDir QList QSqlResult QWindowsVistaStyle
QDirectPainter QListIterator QSqlTableModel QWindowsXPStyle
QDirIterator QListView QSslCertificate QWizard
QDirModel QListWidget QSslCipher QWizardPage
QDockWidget QListWidgetItem QSslConfiguration QWriteLocker
QDomAttr QLocale QSslError QWSCalibratedMouseHandler
QDomCDATASection QLocalServer QSslKey QWSClient
QDomCharacterData QLocalSocket QSslSocket QWSEmbedWidget
QDomComment M  QMacCocoaViewContainer QStack QWSEvent
QDomDocument QMacNativeWidget QStackedLayout QWSGLWindowSurface
QDomDocumentFragment QMacPasteboardMime QStackedWidget QWSInputMethod
QDomDocumentType QMacStyle QStandardItem QWSKeyboardHandler
QDomElement QMainWindow QStandardItemEditorCreator QWSMouseHandler
QDomEntity QMap QStandardItemModel QWSPointerCalibrationData
QDomEntityReference QMapIterator QState QWSScreenSaver
QDomImplementation QMargins QStateMachine QWSServer
QDomNamedNodeMap QMatrix4x4 QStatusBar QWSWindow
QDomNode QMdiArea QStatusTipEvent X  QX11EmbedContainer
QDomNodeList QMdiSubWindow QString QX11EmbedWidget
QDomNotation MediaController (Phonon) QStringList QX11Info
QDomProcessingInstruction MediaNode (Phonon) QStringListModel QXmlAttributes
QDomText MediaObject (Phonon) QStringMatcher QXmlContentHandler
QDoubleSpinBox MediaSource (Phonon) QStringRef QXmlDeclHandler
QDoubleValidator QMenu QStyle QXmlDefaultHandler
QDrag QMenuBar QStyledItemDelegate QXmlDTDHandler
QDragEnterEvent QMessageBox QStyleFactory QXmlEntityResolver
QDragLeaveEvent QMetaClassInfo QStyleHintReturn QXmlErrorHandler
QDragMoveEvent QMetaEnum QStyleHintReturnMask QXmlFormatter
QDropEvent QMetaMethod QStyleHintReturnVariant QXmlInputSource
QDynamicPropertyChangeEvent QMetaObject QStyleOption QXmlItem
E  QEasingCurve QMetaProperty QStyleOptionButton QXmlLexicalHandler
Effect (Phonon) QMetaType QStyleOptionComboBox QXmlLocator
EffectParameter (Phonon) QMimeData QStyleOptionComplex QXmlName
EffectWidget (Phonon) QModelIndex QStyleOptionDockWidget QXmlNamePool
QErrorMessage QMotifStyle QStyleOptionFocusRect QXmlNamespaceSupport
QEvent QMouseDriverFactory QStyleOptionFrame QXmlNodeModelIndex
QEventLoop QMouseDriverPlugin QStyleOptionFrameV2 QXmlParseException
QEventTransition QMouseEvent QStyleOptionFrameV3 QXmlQuery
Exception (QtConcurrent) QMouseEventTransition QStyleOptionGraphicsItem QXmlReader
QExplicitlySharedDataPointer QMoveEvent QStyleOptionGroupBox QXmlResultItems
QExtensionFactory QMovie QStyleOptionHeader QXmlSchema
QExtensionManager QMultiHash QStyleOptionMenuItem QXmlSchemaValidator
F  QFile QMultiMap QStyleOptionProgressBar QXmlSerializer
QFileDialog QMutableHashIterator QStyleOptionProgressBarV2 QXmlSimpleReader
QFileIconProvider QMutableLinkedListIterator QStyleOptionQ3DockWindow QXmlStreamAttribute
QFileInfo QMutableListIterator QStyleOptionQ3ListView QXmlStreamAttributes
QFileOpenEvent QMutableMapIterator QStyleOptionQ3ListViewItem QXmlStreamEntityDeclaration
QFileSystemModel QMutableSetIterator QStyleOptionRubberBand QXmlStreamEntityResolver
QFileSystemWatcher QMutableVectorIterator QStyleOptionSizeGrip QXmlStreamNamespaceDeclaration
QFinalState QMutex QStyleOptionSlider QXmlStreamNotationDeclaration
QFlag QMutexLocker QStyleOptionSpinBox QXmlStreamReader
QFlags N  QNetworkAccessManager QStyleOptionTab QXmlStreamWriter
QFocusEvent QNetworkAddressEntry QStyleOptionTabBarBase  
QFocusFrame QNetworkCacheMetaData QStyleOptionTabBarBaseV2

See also Qt3 Support Classes, All Qt Modules, and Obsolete Classes.

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Qt 4.6.0