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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 and the Qt 4.3 Class Chart (PDF).

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

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


Copyright © 2007 Trolltech Trademarks
Qt 4.4.0-tp1