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

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


Copyright © 2006 Trolltech Trademarks
Qt 4.2.0-snapshot-20060701