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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 4.1 Class Chart (PDF).

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

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


Copyright © 2007 Trolltech Trademarks
Qt 4.3.0beta