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

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


Copyright © 2009 Nokia Corporation and/or its subsidiary(-ies) Trademarks
Qt 4.5.0-rc1