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

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


Copyright © 2008 Trolltech Trademarks
Qt 4.4.0-rc1