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

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

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Qt 4.6.0-tp1