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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.

QAbstractAnimation QFontComboBox QMutexLocker QStyleOptionTabBarBase
QAbstractButton QFontDatabase QNetworkAccessManager QStyleOptionTabBarBaseV2
QAbstractEventDispatcher QFontDialog QNetworkAddressEntry QStyleOptionTabV2
QAbstractExtensionFactory QFontEngineInfo QNetworkCacheMetaData QStyleOptionTabV3
QAbstractExtensionManager QFontEnginePlugin QNetworkCookie QStyleOptionTabWidgetFrame
QAbstractFileEngine QFontInfo QNetworkCookieJar QStyleOptionTabWidgetFrameV2
QAbstractFileEngineHandler QFontMetrics QNetworkDiskCache QStyleOptionTitleBar
QAbstractFileEngineIterator QFontMetricsF QNetworkInterface QStyleOptionToolBar
QAbstractFontEngine QFormBuilder QNetworkProxy QStyleOptionToolBox
QAbstractFormBuilder QFormLayout QNetworkProxyFactory QStyleOptionToolBoxV2
QAbstractGraphicsShapeItem QFrame QNetworkProxyQuery QStyleOptionToolButton
QAbstractItemDelegate QFSFileEngine QNetworkReply QStyleOptionViewItem
QAbstractItemModel QFtp QNetworkRequest QStyleOptionViewItemV2
QAbstractItemView QFuture Notifier (Phonon::BackendCapabilities) QStyleOptionViewItemV3
QAbstractKineticScroller QFutureIterator QObject QStyleOptionViewItemV4
QAbstractListModel QFutureSynchronizer QObjectCleanupHandler QStylePainter
QAbstractMessageHandler QFutureWatcher ObjectDescription (Phonon) QStylePlugin
QAbstractNetworkCache QGenericArgument QPageSetupDialog QSvgGenerator
QAbstractPrintDialog QGenericMatrix QPaintDevice QSvgRenderer
QAbstractProxyModel QGenericReturnArgument QPaintEngine QSvgWidget
QAbstractScrollArea QGesture QPaintEngineState QSwipeGesture
QAbstractSlider QGestureEvent QPainter QSymbianEvent
QAbstractSocket QGestureRecognizer QPainterPath QSyntaxHighlighter
QAbstractSpinBox QGLColormap QPainterPathStroker QSysInfo
QAbstractState QGLContext QPaintEvent QSystemLocale
QAbstractTableModel QGLFormat QPair QSystemSemaphore
QAbstractTextDocumentLayout QGLFramebufferObject QPalette QSystemTrayIcon
QAbstractTransition QGLFramebufferObjectFormat QPanGesture QTabBar
QAbstractUriResolver QGLPixelBuffer QParallelAnimationGroup QTabletEvent
QAbstractVideoBuffer QGLShader Path (Phonon) QTableView
QAbstractVideoSurface QGLShaderProgram QPauseAnimation QTableWidget
QAbstractXmlNodeModel QGLWidget QPen QTableWidgetItem
QAbstractXmlReceiver QGradient QPersistentModelIndex QTableWidgetSelectionRange
QAccessible QGraphicsAnchor QPicture QTabWidget
QAccessibleBridge QGraphicsAnchorLayout QPinchGesture QTapAndHoldGesture
QAccessibleBridgePlugin QGraphicsBlurEffect QPixmap QTapGesture
QAccessibleEvent QGraphicsColorizeEffect QPixmapCache QTcpServer
QAccessibleInterface QGraphicsDropShadowEffect QPlainTextDocumentLayout QTcpSocket
QAccessibleObject QGraphicsEffect QPlainTextEdit QTemporaryFile
QAccessiblePlugin QGraphicsEllipseItem QPlastiqueStyle QTestEventList
QAccessibleWidget QGraphicsGridLayout QPluginLoader QTextBlock
QAction QGraphicsItem QPoint QTextBlockFormat
QActionEvent QGraphicsItemAnimation QPointer QTextBlockGroup
QActionGroup QGraphicsItemGroup QPointF QTextBlockUserData
QAnimationGroup QGraphicsLayout QPolygon QTextBoundaryFinder
QApplication QGraphicsLayoutItem QPolygonF QTextBrowser
QAtomicInt QGraphicsLinearLayout QPrintDialog QTextCharFormat
QAtomicPointer QGraphicsLineItem QPrintEngine QTextCodec
QAudioDeviceInfo QGraphicsObject QPrinter QTextCodecPlugin
QAudioFormat QGraphicsOpacityEffect QPrinterInfo QTextCursor
QAudioInput QGraphicsPathItem QPrintPreviewDialog QTextDecoder
QAudioOutput QGraphicsPixmapItem QPrintPreviewWidget QTextDocument
QAuthenticator QGraphicsPolygonItem QProcess QTextDocumentFragment
QAxAggregated QGraphicsProxyWidget QProcessEnvironment QTextDocumentWriter
QAxBase QGraphicsRectItem QProgressBar QTextEdit
QAxBindable QGraphicsRotation QProgressDialog QTextEncoder
QAxFactory QGraphicsScale QPropertyAnimation QTextFormat
QAxObject QGraphicsScene QProxyScreen QTextFragment
QAxScript QGraphicsSceneContextMenuEvent QProxyScreenCursor QTextFrame
QAxScriptEngine QGraphicsSceneDragDropEvent QProxyStyle QTextFrameFormat
QAxScriptManager QGraphicsSceneEvent QPushButton QTextImageFormat
QAxWidget QGraphicsSceneHelpEvent QTouchEventSequence (QTest) QTextInlineObject
QBasicTimer QGraphicsSceneHoverEvent QQuaternion QTextItem
QBitArray QGraphicsSceneMouseEvent QQueue QTextLayout
QBitmap QGraphicsSceneMoveEvent QRadialGradient QTextLength
QBoxLayout QGraphicsSceneResizeEvent QRadioButton QTextLine
QBrush QGraphicsSceneWheelEvent QRasterPaintEngine QTextList
QBuffer QGraphicsSimpleTextItem QReadLocker QTextListFormat
QButtonGroup QGraphicsSvgItem QReadWriteLock QTextObject
QByteArray QGraphicsTextItem QRect QTextObjectInterface
QByteArrayMatcher QGraphicsTransform QRectF QTextOption
QCache QGraphicsView QRegExp QTextStream
QCalendarWidget QGraphicsWebView QRegExpValidator QTextTable
QCDEStyle QGraphicsWidget QRegion QTextTableCell
QChar QGridLayout QResizeEvent QTextTableCellFormat
QCheckBox QGroupBox QResource QTextTableFormat
QChildEvent QGtkStyle QRubberBand QThread
QCleanlooksStyle QHash QRunnable QThreadPool
QClipboard QHashIterator QS60MainApplication QThreadStorage
QCloseEvent QHBoxLayout QS60MainAppUi QTileRules
QColor QHeaderView QS60MainDocument QTime
QColorDialog QHelpContentItem QS60Style QTimeEdit
QColormap QHelpContentModel QScopedPointer QTimeLine
QColumnView QHelpContentWidget QScreen QTimer
QComboBox QHelpEngine QScreenCursor QTimerEvent
QCommandLinkButton QHelpEngineCore QScreenDriverFactory QToolBar
QCommonStyle QHelpEvent QScreenDriverPlugin QToolBox
QCompleter QHelpIndexModel QScriptable QToolButton
QConicalGradient QHelpIndexWidget QScriptClass QToolTip
QContextMenuEvent QHelpSearchEngine QScriptClassPropertyIterator QTouchEvent
QContiguousCache QHelpSearchQuery QScriptContext QTransform
QCopChannel QHelpSearchQueryWidget QScriptContextInfo QTranslator
QCoreApplication QHelpSearchResultWidget QScriptEngine QTreeView
QCryptographicHash QHideEvent QScriptEngineAgent QTreeWidget
QCursor QHistoryState QScriptEngineDebugger QTreeWidgetItem
QCustomRasterPaintDevice QHostAddress QScriptExtensionPlugin QTreeWidgetItemIterator
QDataStream QHostInfo QScriptString QUdpSocket
QDataWidgetMapper QHoverEvent QScriptSyntaxCheckResult QUiLoader
QDate QIcon QScriptValue QUndoCommand
QDateEdit QIconDragEvent QScriptValueIterator QUndoGroup
QDateTime QIconEngine QScrollArea QUndoStack
QDateTimeEdit QIconEnginePlugin QScrollBar QUndoView
QDBusAbstractAdaptor QIconEnginePluginV2 SeekSlider (Phonon) UnhandledException (QtConcurrent)
QDBusAbstractInterface QIconEngineV2 QSemaphore QUrl
QDBusArgument QImage QSequentialAnimationGroup QUrlInfo
QDBusConnection QImageIOHandler QSessionManager QUuid
QDBusConnectionInterface QImageIOPlugin QSet QValidator
QDBusContext QImageReader QSetIterator QVariant
QDBusError QImageWriter QSettings QVariantAnimation
QDBusInterface QInputContext QSharedData QVarLengthArray
QDBusMessage QInputContextFactory QSharedDataPointer QVBoxLayout
QDBusObjectPath QInputContextPlugin QSharedMemory QVector
QDBusPendingCall QInputDialog QSharedPointer QVector2D
QDBusPendingCallWatcher QInputEvent QShortcut QVector3D
QDBusPendingReply QInputMethodEvent QShortcutEvent QVector4D
QDBusReply QIntValidator QShowEvent QVectorIterator
QDBusServer QIODevice QSignalMapper QVideoFrame
QDBusServiceWatcher QItemDelegate QSignalSpy VideoPlayer (Phonon)
QDBusSignature QItemEditorCreator QSignalTransition QVideoSurfaceFormat
QDBusVariant QItemEditorCreatorBase QSimpleXmlNodeModel VideoWidget (Phonon)
QDebug QItemEditorFactory QSize VolumeSlider (Phonon)
QDecoration QItemSelection QSizeF QWaitCondition
QDecorationDefault QItemSelectionModel QSizeGrip QWeakPointer
QDecorationFactory QItemSelectionRange QSizePolicy QWebDatabase
QDecorationPlugin QKbdDriverFactory QSlider QWebElement
QDesignerActionEditorInterface QKbdDriverPlugin QSocketNotifier QWebElementCollection
QDesignerContainerExtension QKeyEvent QSortFilterProxyModel QWebFrame
QDesignerCustomWidgetCollectionInterface QKeyEventTransition QSound QWebHistory
QDesignerCustomWidgetInterface QKeySequence QSourceLocation QWebHistoryInterface
QDesignerDynamicPropertySheetExtension QLabel QSpacerItem QWebHistoryItem
QDesignerFormEditorInterface QLatin1Char QSpinBox QWebHitTestResult
QDesignerFormWindowCursorInterface QLatin1String QSplashScreen QWebInspector
QDesignerFormWindowInterface QLayout QSplitter QWebPage
QDesignerFormWindowManagerInterface QLayoutItem QSplitterHandle QWebPluginFactory
QDesignerMemberSheetExtension QLCDNumber QSqlDatabase QWebSecurityOrigin
QDesignerObjectInspectorInterface QLibrary QSqlDriver QWebSettings
QDesignerPropertyEditorInterface QLibraryInfo QSqlDriverCreator QWebView
QDesignerPropertySheetExtension QLine QSqlDriverCreatorBase QWhatsThis
QDesignerTaskMenuExtension QLinearGradient QSqlDriverPlugin QWhatsThisClickedEvent
QDesignerWidgetBoxInterface QLineEdit QSqlError QWheelEvent
QDesktopServices QLineF QSqlField QWidget
QDesktopWidget QLinkedList QSqlIndex QWidgetAction
QDial QLinkedListIterator QSqlQuery QWidgetItem
QDialog QList QSqlQueryModel QWindowsMime
QDialogButtonBox QListIterator QSqlRecord QWindowsStyle
QDir QListView QSqlRelation QWindowStateChangeEvent
QDirectPainter QListWidget QSqlRelationalDelegate QWindowsVistaStyle
QDirIterator QListWidgetItem QSqlRelationalTableModel QWindowsXPStyle
QDirModel QLocale QSqlResult QWizard
QDockWidget QLocalServer QSqlTableModel QWizardPage
QDomAttr QLocalSocket QSslCertificate QWriteLocker
QDomCDATASection QMacCocoaViewContainer QSslCipher QWSCalibratedMouseHandler
QDomCharacterData QMacNativeWidget QSslConfiguration QWSClient
QDomComment QMacPasteboardMime QSslError QWSEmbedWidget
QDomDocument QMacStyle QSslKey QWSEvent
QDomDocumentFragment QMaemo5AbstractPickSelector QSslSocket QWSGLWindowSurface
QDomDocumentType QMaemo5EditBar QStack QWSInputMethod
QDomElement QMaemo5InformationBox QStackedLayout QWSKeyboardHandler
QDomEntity QMaemo5ListPickSelector QStackedWidget QWSMouseHandler
QDomEntityReference QMaemo5Style QStandardItem QWSPointerCalibrationData
QDomImplementation QMaemo5TimePickSelector QStandardItemEditorCreator QWSScreenSaver
QDomNamedNodeMap QMaemo5ValueButton QStandardItemModel QWSServer
QDomNode QMainWindow QState QWSWindow
QDomNodeList QMap QStateMachine QX11EmbedContainer
QDomNotation QMapIterator QStatusBar QX11EmbedWidget
QDomProcessingInstruction QMargins QStatusTipEvent QX11Info
QDomText QMatrix4x4 QString QXmlAttributes
QDoubleSpinBox QMdiArea QStringList QXmlContentHandler
QDoubleValidator QMdiSubWindow QStringListModel QXmlDeclHandler
QDrag MediaController (Phonon) QStringMatcher QXmlDefaultHandler
QDragEnterEvent MediaNode (Phonon) QStringRef QXmlDTDHandler
QDragLeaveEvent MediaObject (Phonon) QStyle QXmlEntityResolver
QDragMoveEvent MediaSource (Phonon) QStyledItemDelegate QXmlErrorHandler
QDropEvent QMenu QStyleFactory QXmlFormatter
QDynamicPropertyChangeEvent QMenuBar QStyleHintReturn QXmlInputSource
QEasingCurve QMessageBox QStyleHintReturnMask QXmlItem
Effect (Phonon) QMetaClassInfo QStyleHintReturnVariant QXmlLexicalHandler
EffectParameter (Phonon) QMetaEnum QStyleOption QXmlLocator
EffectWidget (Phonon) QMetaMethod QStyleOptionButton QXmlName
QErrorMessage QMetaObject QStyleOptionComboBox QXmlNamePool
QEvent QMetaProperty QStyleOptionComplex QXmlNamespaceSupport
QEventLoop QMetaType QStyleOptionDockWidget QXmlNodeModelIndex
QEventTransition QMimeData QStyleOptionFocusRect QXmlParseException
Exception (QtConcurrent) QModelIndex QStyleOptionFrame QXmlQuery
QExplicitlySharedDataPointer QMotifStyle QStyleOptionFrameV2 QXmlReader
QExtensionFactory QMouseDriverFactory QStyleOptionFrameV3 QXmlResultItems
QExtensionManager QMouseDriverPlugin QStyleOptionGraphicsItem QXmlSchema
QFile QMouseEvent QStyleOptionGroupBox QXmlSchemaValidator
QFileDialog QMouseEventTransition QStyleOptionHeader QXmlSerializer
QFileIconProvider QMoveEvent QStyleOptionMenuItem QXmlSimpleReader
QFileInfo QMovie QStyleOptionProgressBar QXmlStreamAttribute
QFileOpenEvent QMultiHash QStyleOptionProgressBarV2 QXmlStreamAttributes
QFileSystemModel QMultiMap QStyleOptionQ3DockWindow QXmlStreamEntityDeclaration
QFileSystemWatcher QMutableHashIterator QStyleOptionQ3ListView QXmlStreamEntityResolver
QFinalState QMutableLinkedListIterator QStyleOptionQ3ListViewItem QXmlStreamNamespaceDeclaration
QFlag QMutableListIterator QStyleOptionRubberBand QXmlStreamNotationDeclaration
QFlags QMutableMapIterator QStyleOptionSizeGrip QXmlStreamReader
QFocusEvent QMutableSetIterator QStyleOptionSlider QXmlStreamWriter
QFocusFrame QMutableVectorIterator QStyleOptionSpinBox  
QFont QMutex QStyleOptionTab

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


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Qt 4.6.2