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Qt's Classes

This is a list of all Qt classes excluding the Qt 3 compatibility classes. For a shorter list that only includes the most frequently used classes, see Qt's Main Classes.

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

See also Qt 3 Compatibility Classes and Qt's Modules.


Copyright © 2009 Nokia Corporation and/or its subsidiary(-ies) Trademarks
Qt 4.5.0