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Class Inheritance Hierarchy

This list shows the C++ class inheritance relations between the classes in the Qt API.

• Phonon::EffectParameter
• QtConcurrent::Exception
• QtConcurrent::UnhandledException
• Phonon::MediaNode
• Phonon::AudioOutput
• Phonon::Effect
• Phonon::MediaObject
• Phonon::VideoWidget
• Phonon::MediaSource
• Phonon::ObjectDescription
• Phonon::Path
• QAbstractExtensionFactory
• QExtensionFactory
• QAbstractExtensionManager
• QExtensionManager
• QAbstractFileEngine
• QFSFileEngine
• QAbstractFileEngineHandler
• QAbstractFileEngineIterator
• QAbstractFormBuilder
• QFormBuilder
• QAbstractXmlReceiver
• QXmlSerializer
• QXmlFormatter
• QAccessible
• QAccessibleInterface
• QAccessibleObject
• QAccessibleWidget
• QAccessiblePlugin
• QAccessibleBridge
• QAtomicInt
• QAtomicPointer
• QAuthenticator
• QBasicTimer
• QBitArray
• QBrush
• QByteArray
• Q3CString
• QByteArrayMatcher
• QCache
• QChar
• QColor
• QColormap
• QCryptographicHash
• QCursor
• QDBusArgument
• QDBusConnection
• QDBusContext
• QDBusError
• QDBusMessage
• QDBusReply
• QDataStream
• QDate
• QDateTime
• QDecoration
• QDecorationDefault
• QDecorationFactory
• QDesignerContainerExtension
• QDesignerCustomWidgetCollectionInterface
• QDesignerCustomWidgetInterface
• QDesignerDynamicPropertySheetExtension
• QDesignerFormWindowCursorInterface
• QDesignerMemberSheetExtension
• QDesignerPropertySheetExtension
• QDesignerTaskMenuExtension
• QDesktopServices
• QDir
• QDirIterator
• QDomImplementation
• QDomNamedNodeMap
• QDomNode
• QDomAttr
• QDomCharacterData
• QDomComment
• QDomText
• QDomCDATASection
• QDomDocument
• QDomDocumentFragment
• QDomDocumentType
• QDomElement
• QDomEntity
• QDomEntityReference
• QDomNotation
• QDomProcessingInstruction
• QDomNodeList
• QEvent
• QAccessibleEvent
• QActionEvent
• QChildEvent
• QCloseEvent
• QCustomEvent
• QDragLeaveEvent
• QDropEvent
• QDragMoveEvent
• QDragEnterEvent
• QDynamicPropertyChangeEvent
• QFileOpenEvent
• QFocusEvent
• QGraphicsSceneEvent
• QGraphicsSceneContextMenuEvent
• QGraphicsSceneDragDropEvent
• QGraphicsSceneHelpEvent
• QGraphicsSceneHoverEvent
• QGraphicsSceneMouseEvent
• QGraphicsSceneMoveEvent
• QGraphicsSceneResizeEvent
• QGraphicsSceneWheelEvent
• QHelpEvent
• QHideEvent
• QHoverEvent
• QIconDragEvent
• QInputEvent
• QContextMenuEvent
• QKeyEvent
• QMouseEvent
• QTabletEvent
• QWheelEvent
• QInputMethodEvent
• QMoveEvent
• QPaintEvent
• QResizeEvent
• QShortcutEvent
• QShowEvent
• QStatusTipEvent
• QTimerEvent
• QWhatsThisClickedEvent
• QWindowStateChangeEvent
• WebCore::SetCursorEvent
• QExplicitlySharedDataPointer
• QFileIconProvider
• QFileInfo
• QFlag
• QFlags
• QFont
• QFontDatabase
• QFontEngineInfo
• QFontInfo
• QFontMetrics
• QFontMetricsF
• QFuture
• QFutureIterator
• QFutureSynchronizer
• QGLColormap
• QGLContext
• QGLFormat
• QGenericArgument
• QGenericReturnArgument
• QGradient
• QConicalGradient
• QLinearGradient
• QRadialGradient
• QGraphicsItem
• QAbstractGraphicsShapeItem
• QGraphicsEllipseItem
• QGraphicsPathItem
• QGraphicsPolygonItem
• QGraphicsRectItem
• QGraphicsSimpleTextItem
• QGraphicsItemGroup
• QGraphicsLineItem
• QGraphicsPixmapItem
• QGraphicsSvgItem
• QGraphicsTextItem
• QGraphicsWidget
• QGraphicsProxyWidget
• QGraphicsLayoutItem
• QGraphicsLayout
• QGraphicsGridLayout
• QGraphicsLinearLayout
• QGraphicsWidget
• QGraphicsProxyWidget
• QHash
• QMultiHash
• QHashIterator
• QHelpContentItem
• QHelpSearchQuery
• QHostAddress
• QHostInfo
• QHttpHeader
• QHttpRequestHeader
• QHttpResponseHeader
• QIcon
• QIconEngine
• QIconEngineV2
• QImageIOHandler
• QImageReader
• QImageWriter
• QInputContextFactory
• QItemEditorCreatorBase
• QItemEditorCreator
• QStandardItemEditorCreator
• QItemEditorFactory
• QItemSelectionRange
• QKbdDriverFactory
• QKeySequence
• QLatin1Char
• QLatin1String
• QLayoutItem
• QLayout
• QBoxLayout
• Q3HBoxLayout
• Q3VBoxLayout
• QHBoxLayout
• QVBoxLayout
• QFormLayout
• QGridLayout
• QStackedLayout
• QSpacerItem
• QWidgetItem
• QLibraryInfo
• QLine
• QLineF
• QLinkedList
• Q3ValueList
• Q3CanvasItemList
• Q3ValueStack
• QLinkedListIterator
• QList
• QItemSelection
• QQueue
• QSignalSpy
• QStringList
• QTestEventList
• QListIterator
• QListWidgetItem
• QLocale
• QMap
• QMultiMap
• QMapIterator
• QMatrix
• QMetaClassInfo
• QMetaEnum
• QMetaMethod
• QMetaObject
• QMetaProperty
• QMetaType
• QMimeSource
• Q3DragObject
• Q3IconDrag
• Q3ImageDrag
• Q3StoredDrag
• Q3ColorDrag
• Q3UriDrag
• Q3TextDrag
• QDropEvent
• QDragMoveEvent
• QDragEnterEvent
• QModelIndex
• QMouseDriverFactory
• QMutableHashIterator
• QMutableLinkedListIterator
• QMutableListIterator
• QMutableMapIterator
• QMutableSetIterator
• QMutableVectorIterator
• QMutex
• QMutexLocker
• QNetworkAddressEntry
• QNetworkCookie
• QNetworkInterface
• QNetworkProxy
• QNetworkRequest
• QObject
• Phonon::AudioOutput
• QMdi::ControlContainer
• Phonon::Effect
• WebCore::FrameLoaderClientQt
• Phonon::GlobalConfig
• Phonon::MediaController
• Phonon::MediaObject
• Phonon::BackendCapabilities::Notifier
• Q3Accel
• Q3Action
• Q3ActionGroup
• Q3Canvas
• Q3Dns
• Q3DragObject
• Q3IconDrag
• Q3ImageDrag
• Q3StoredDrag
• Q3ColorDrag
• Q3UriDrag
• Q3TextDrag
• Q3EditorFactory
• Q3SqlEditorFactory
• Q3FileIconProvider
• Q3NetworkOperation
• Q3NetworkProtocol
• Q3Ftp
• Q3Http
• Q3LocalFs
• Q3Process
• Q3ServerSocket
• Q3Signal
• Q3SqlForm
• Q3StyleSheet
• Q3UrlOperator
• Q3WhatsThis
• QAbstractEventDispatcher
• QAbstractFontEngine
• QAbstractItemDelegate
• QItemDelegate
• QSqlRelationalDelegate
• QStyledItemDelegate
• QAbstractItemModel
• QAbstractListModel
• QStringListModel
• QHelpIndexModel
• QAbstractProxyModel
• QSortFilterProxyModel
• QAbstractTableModel
• QSqlQueryModel
• QSqlTableModel
• QSqlRelationalTableModel
• QDirModel
• QFileSystemModel
• QHelpContentModel
• QProxyModel
• QStandardItemModel
• QAbstractMessageHandler
• QAbstractTextDocumentLayout
• QPlainTextDocumentLayout
• QAbstractUriResolver
• QAccessibleBridgePlugin
• QAccessiblePlugin
• QAction
• QMenuItem
• QWidgetAction
• QActionGroup
• QAssistantClient
• QButtonGroup
• QClipboard
• QCompleter
• QCopChannel
• QCoreApplication
• QApplication
• QDBusAbstractAdaptor
• QDBusAbstractInterface
• QDBusConnectionInterface
• QDBusInterface
• QDBusServer
• QDataWidgetMapper
• QDecorationPlugin
• QDesignerFormEditorInterface
• QDesignerFormWindowManagerInterface
• QDirectPainter
• QDrag
• QEventLoop
• QExtensionFactory
• QExtensionManager
• QFileSystemWatcher
• QFontEnginePlugin
• QFtp
• QFutureWatcher
• QGraphicsItemAnimation
• QGraphicsScene
• QGraphicsSvgItem
• QGraphicsTextItem
• QGraphicsWidget
• QGraphicsProxyWidget
• QHelpEngineCore
• QHelpEngine
• QHelpSearchEngine
• QHttp
• QIODevice
• Q3Socket
• Q3SocketDevice
• QAbstractSocket
• QTcpSocket
• QSslSocket
• QUdpSocket
• QBuffer
• QFile
• QTemporaryFile
• QLocalSocket
• QNetworkReply
• QProcess
• QIconEnginePlugin
• QIconEnginePluginV2
• QImageIOPlugin
• QInputContext
• QInputContextPlugin
• QItemSelectionModel
• QKbdDriverPlugin
• QLayout
• QBoxLayout
• Q3HBoxLayout
• Q3VBoxLayout
• QHBoxLayout
• QVBoxLayout
• QFormLayout
• QGridLayout
• QStackedLayout
• QLibrary
• QLocalServer
• QMimeData
• QMouseDriverPlugin
• QMovie
• QNetworkAccessManager
• QNetworkCookieJar
• QObjectCleanupHandler
• QPictureFormatPlugin
• QPluginLoader
• QScreenDriverPlugin
• QScriptEngine
• QScriptExtensionPlugin
• QSessionManager
• QSettings
• QSharedMemory
• QShortcut
• QSignalMapper
• QSignalSpy
• QSocketNotifier
• QSound
• QSqlDriver
• QSqlDriverPlugin
• QStyle
• QCommonStyle
• QMotifStyle
• QCDEStyle
• QWindowsStyle
• QCleanlooksStyle
• QPlastiqueStyle
• QWindowsXPStyle
• QWindowsVistaStyle
• QStylePlugin
• QSvgRenderer
• QSyntaxHighlighter
• QSystemTrayIcon
• QTcpServer
• QTextCodecPlugin
• QTextDocument
• QTextObject
• QTextBlockGroup
• QTextList
• QTextFrame
• QTextTable
• QThread
• qt::fulltextsearch::std::QHelpSearchIndexReader
• qt::fulltextsearch::std::QHelpSearchIndexWriter
• QThreadPool
• QTimeLine
• QTimer
• QTranslator
• QUiLoader
• QUndoGroup
• QUndoStack
• QValidator
• QDoubleValidator
• QIntValidator
• QRegExpValidator
• QWSClient
• QWSInputMethod
• QWSServer
• QWebFrame
• QWebHistoryInterface
• QWebPage
• QWebPluginFactory
• QWidget
• Phonon::EffectWidget
• Q3ComboBox
• Q3DataBrowser
• Q3DataView
• Q3DateTimeEdit
• Q3DateTimeEditBase
• Q3DateEdit
• Q3TimeEdit
• Q3DockArea
• Q3Header
• Q3MainWindow
• QAbstractButton
• Q3Button
• QCheckBox
• QPushButton
• QCommandLinkButton
• QRadioButton
• QToolButton
• QAbstractSlider
• QDial
• QScrollBar
• QSlider
• QAbstractSpinBox
• QDateTimeEdit
• QDateEdit
• QTimeEdit
• QDoubleSpinBox
• QSpinBox
• QCalendarWidget
• QComboBox
• QFontComboBox
• QDesignerActionEditorInterface
• QDesignerFormWindowInterface
• QDesignerObjectInspectorInterface
• QDesignerPropertyEditorInterface
• QDesignerWidgetBoxInterface
• QDesktopWidget
• QDialog
• Q3FileDialog
• Q3ProgressDialog
• Q3TabDialog
• Q3Wizard
• QAbstractPrintDialog
• QPrintDialog
• QColorDialog
• QErrorMessage
• QFileDialog
• QFontDialog
• QInputDialog
• QMessageBox
• QPageSetupDialog
• QPrintPreviewDialog
• QProgressDialog
• QWizard
• QDialogButtonBox
• QDockWidget
• QFocusFrame
• QFrame
• Q3Frame
• Q3DockWindow
• Q3ToolBar
• Q3Grid
• Q3HBox
• Q3VBox
• Q3ScrollView
• Q3CanvasView
• Q3GridView
• Q3IconView
• Q3ListBox
• Q3ListView
• Q3Table
• Q3DataTable
• Q3TextEdit
• Q3MultiLineEdit
• Q3TextBrowser
• Q3TextView
• Q3WidgetStack
• Q3ProgressBar
• QAbstractScrollArea
• QAbstractItemView
• QColumnView
• QHeaderView
• QListView
• QHelpIndexWidget
• QListWidget
• QUndoView
• QTableView
• QTableWidget
• QTreeView
• QHelpContentWidget
• QTreeWidget
• QGraphicsView
• QMdiArea
• QPlainTextEdit
• QScrollArea
• QTextEdit
• QTextBrowser
• QLCDNumber
• QLabel
• QSplitter
• QStackedWidget
• QToolBox
• QGLWidget
• QGroupBox
• Q3GroupBox
• Q3ButtonGroup
• Q3HButtonGroup
• Q3VButtonGroup
• Q3HGroupBox
• Q3VGroupBox
• QHelpSearchQueryWidget
• QHelpSearchResultWidget
• QLineEdit
• QMainWindow
• QMdiSubWindow
• QMenu
• Q3PopupMenu
• QMenuBar
• QPrintPreviewWidget
• QProgressBar
• QRubberBand
• QSizeGrip
• QSplashScreen
• QSplitterHandle
• QStatusBar
• QSvgWidget
• QTabBar
• QTabWidget
• QToolBar
• QWSEmbedWidget
• QWebView
• QWizardPage
• QWorkspace
• QX11EmbedContainer
• QX11EmbedWidget
• Phonon::SeekSlider
• Phonon::VideoPlayer
• Phonon::VideoWidget
• Phonon::VolumeSlider
• Phonon::Factory::Sender
• QPaintDevice
• QCustomRasterPaintDevice
• QGLFramebufferObject
• QGLPixelBuffer
• QImage
• QPicture
• Q3Picture
• QPixmap
• Q3CanvasPixmap
• QBitmap
• QPrinter
• QSvgGenerator
• QWidget
• Phonon::EffectWidget
• Q3ComboBox
• Q3DataBrowser
• Q3DataView
• Q3DateTimeEdit
• Q3DateTimeEditBase
• Q3DateEdit
• Q3TimeEdit
• Q3DockArea
• Q3Header
• Q3MainWindow
• QAbstractButton
• Q3Button
• QCheckBox
• QPushButton
• QCommandLinkButton
• QRadioButton
• QToolButton
• QAbstractSlider
• QDial
• QScrollBar
• QSlider
• QAbstractSpinBox
• QDateTimeEdit
• QDateEdit
• QTimeEdit
• QDoubleSpinBox
• QSpinBox
• QCalendarWidget
• QComboBox
• QFontComboBox
• QDesignerActionEditorInterface
• QDesignerFormWindowInterface
• QDesignerObjectInspectorInterface
• QDesignerPropertyEditorInterface
• QDesignerWidgetBoxInterface
• QDesktopWidget
• QDialog
• Q3FileDialog
• Q3ProgressDialog
• Q3TabDialog
• Q3Wizard
• QAbstractPrintDialog
• QPrintDialog
• QColorDialog
• QErrorMessage
• QFileDialog
• QFontDialog
• QInputDialog
• QMessageBox
• QPageSetupDialog
• QPrintPreviewDialog
• QProgressDialog
• QWizard
• QDialogButtonBox
• QDockWidget
• QFocusFrame
• QFrame
• Q3Frame
• Q3DockWindow
• Q3ToolBar
• Q3Grid
• Q3HBox
• Q3VBox
• Q3ScrollView
• Q3CanvasView
• Q3GridView
• Q3IconView
• Q3ListBox
• Q3ListView
• Q3Table
• Q3DataTable
• Q3TextEdit
• Q3MultiLineEdit
• Q3TextBrowser
• Q3TextView
• Q3WidgetStack
• Q3ProgressBar
• QAbstractScrollArea
• QAbstractItemView
• QColumnView
• QHeaderView
• QListView
• QHelpIndexWidget
• QListWidget
• QUndoView
• QTableView
• QTableWidget
• QTreeView
• QHelpContentWidget
• QTreeWidget
• QGraphicsView
• QMdiArea
• QPlainTextEdit
• QScrollArea
• QTextEdit
• QTextBrowser
• QLCDNumber
• QLabel
• QSplitter
• QStackedWidget
• QToolBox
• QGLWidget
• QGroupBox
• Q3GroupBox
• Q3ButtonGroup
• Q3HButtonGroup
• Q3VButtonGroup
• Q3HGroupBox
• Q3VGroupBox
• QHelpSearchQueryWidget
• QHelpSearchResultWidget
• QLineEdit
• QMainWindow
• QMdiSubWindow
• QMenu
• Q3PopupMenu
• QMenuBar
• QPrintPreviewWidget
• QProgressBar
• QRubberBand
• QSizeGrip
• QSplashScreen
• QSplitterHandle
• QStatusBar
• QSvgWidget
• QTabBar
• QTabWidget
• QToolBar
• QWSEmbedWidget
• QWebView
• QWizardPage
• QWorkspace
• QX11EmbedContainer
• QX11EmbedWidget
• Phonon::SeekSlider
• Phonon::VideoPlayer
• Phonon::VideoWidget
• Phonon::VolumeSlider
• QPaintEngine
• QRasterPaintEngine
• QPaintEngineState
• QPainter
• Q3Painter
• QStylePainter
• QPainterPath
• QPainterPathStroker
• QPair
• QPalette
• QColorGroup
• QPen
• QPersistentModelIndex
• QPictureIO
• QPixmapCache
• QPoint
• QPointF
• QPointer
• QPrintEngine
• QPrinterInfo
• QReadLocker
• QReadWriteLock
• QRect
• QRectF
• QRegExp
• QRegion
• QResource
• QRunnable
• QScreen
• QProxyScreen
• QScreenCursor
• QScreenDriverFactory
• QScriptClass
• QScriptClassPropertyIterator
• QScriptContext
• QScriptContextInfo
• QScriptEngineAgent
• QScriptString
• QScriptValue
• QScriptValueIterator
• QScriptable
• QSemaphore
• QSet
• QSetIterator
• QSharedData
• QScript::Ext::EnumerationClassData
• QScript::MemoryPool
• QScript::NodePool
• QAbstractXmlNodeModel
• QSimpleXmlNodeModel
• QSharedDataPointer
• QSize
• QSizeF
• QSizePolicy
• QSourceLocation
• QSqlDatabase
• QSqlDriverCreatorBase
• QSqlDriverCreator
• QSqlError
• QSqlField
• QSqlQuery
• Q3SqlCursor
• Q3SqlSelectCursor
• QSqlRecord
• Q3SqlCursor
• Q3SqlSelectCursor
• QSqlIndex
• QSqlRelation
• QSqlResult
• QSslCertificate
• QSslCipher
• QSslConfiguration
• QSslError
• QSslKey
• QStandardItem
• QString
• QConstString
• QStringMatcher
• QStringRef
• QStyleFactory
• QStyleHintReturn
• QStyleHintReturnMask
• QStyleHintReturnVariant
• QStyleOption
• QStyleOptionButton
• QStyleOptionComplex
• QStyleOptionComboBox
• QStyleOptionGroupBox
• QStyleOptionQ3ListView
• QStyleOptionSizeGrip
• QStyleOptionSlider
• QStyleOptionSpinBox
• QStyleOptionTitleBar
• QStyleOptionToolButton
• QStyleOptionDockWidget
• QStyleOptionFocusRect
• QStyleOptionFrame
• QStyleOptionFrameV2
• QStyleOptionGraphicsItem
• QStyleOptionHeader
• QStyleOptionMenuItem
• QStyleOptionProgressBar
• QStyleOptionProgressBarV2
• QStyleOptionQ3DockWindow
• QStyleOptionQ3ListViewItem
• QStyleOptionRubberBand
• QStyleOptionTab
• QStyleOptionTabV2
• QStyleOptionTabBarBase
• QStyleOptionTabWidgetFrame
• QStyleOptionToolBar
• QStyleOptionToolBox
• QStyleOptionToolBoxV2
• QStyleOptionViewItem
• QStyleOptionViewItemV2
• QStyleOptionViewItemV4
• QSysInfo
• QSystemLocale
• QSystemSemaphore
• QTableWidgetItem
• QTableWidgetSelectionRange
• QTextBlock
• QTextBlockUserData
• QTextBoundaryFinder
• QTextCodec
• QTextCursor
• QTextDecoder
• QTextDocumentFragment
• QTextEncoder
• QTextFormat
• QTextBlockFormat
• QTextCharFormat
• QTextImageFormat
• QTextTableCellFormat
• QTextFrameFormat
• QTextTableFormat
• QTextListFormat
• QTextFragment
• QTextInlineObject
• QTextItem
• QTextLayout
• QTextLength
• QTextLine
• QTextOption
• QTextStream
• QTextIStream
• QTextOStream
• QTextTableCell
• QThreadStorage
• QTime
• QToolTip
• QTransform
• QTreeWidgetItem
• QTreeWidgetItemIterator
• QUndoCommand
• QUrl
• QUrlInfo
• QUuid
• QVarLengthArray
• QVariant
• QVector
• Q3ValueVector
• QPolygon
• Q3PointArray
• QPolygonF
• QStack
• QXmlStreamAttributes
• QVectorIterator
• QWSEvent
• QWSGLWindowSurface
• QWSKeyboardHandler
• QWSMouseHandler
• QWSCalibratedMouseHandler
• QWSPointerCalibrationData
• QWSScreenSaver
• QWSWindow
• QWaitCondition
• QWebHistory
• QWebHistoryItem
• QWebHitTestResult
• QWebSettings
• QWhatsThis
• QWriteLocker
• QX11Info
• QXmlAttributes
• QXmlContentHandler
• QXmlDefaultHandler
• QXmlDTDHandler
• QXmlDefaultHandler
• QXmlDeclHandler
• QXmlDefaultHandler
• QXmlEntityResolver
• QXmlDefaultHandler
• QXmlErrorHandler
• QXmlDefaultHandler
• QXmlInputSource
• QXmlItem
• QXmlLexicalHandler
• QXmlDefaultHandler
• QXmlLocator
• QXmlName
• QXmlNamePool
• QXmlNamespaceSupport
• QXmlNodeModelIndex
• QXmlParseException
• QXmlQuery
• QXmlReader
• QXmlSimpleReader
• QXmlResultItems
• QXmlStreamAttribute
• QXmlStreamEntityDeclaration
• QXmlStreamEntityResolver
• QXmlStreamNamespaceDeclaration
• QXmlStreamNotationDeclaration
• QXmlStreamReader
• QXmlStreamWriter