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

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


Copyright © 2008 Trolltech Trademarks
Qt 4.3.5