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Class Inheritance Hierarchy

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

The list is sorted roughly, but not completely, alphabetically.

• QAsyncIO
  • QDataSink
  • QDataSource
    • QIODeviceSource
• QBitVal
• QChar
• QCharRef
• QCollection
  • QGCache
    • QAsciiCache
    • QCache
    • QIntCache
  • QGDict
    • QAsciiDict
    • QDict
    • QIntDict
    • QPtrDict
  • QGList
    • QList
      • QStrList
        • QStrIList
    • QQueue
    • QStack
  • QGVector
    • QVector
• QColor
• QColorGroup
• QConnection
• QCursor
• QDataStream
• QDate
• QDateTime
• QDir
• QDropSite
• QFileInfo
• QFilePreview
• QFocusData
• QFont
• QFontDatabase
• QFontInfo
• QFontMetrics
• QGArray
  • QArray
    • QByteArray
      • QBitArray
      • QCString
    • QPointArray
• QGCacheIterator
  • QAsciiCacheIterator
  • QCacheIterator
  • QIntCacheIterator
• QGDictIterator
  • QAsciiDictIterator
  • QDictIterator
  • QIntDictIterator
  • QPtrDictIterator
• QGL
  • QGLContext
  • QGLFormat
  • QGLWidget
• QGListIterator
  • QListIterator
    • QStrListIterator
• QGuardedPtr
• QIconDragItem
• QIconSet
• QImage
• QImageConsumer
• QImageDecoder
• QImageFormat
• QImageFormatType
• QImageIO
• QIODevice
  • QBuffer
  • QFile
• QJpUnicodeConv
• QLayoutItem
  • QLayout
  • QSpacerItem
  • QWidgetItem
• QLayoutIterator
• QListBoxItem
  • QListBoxPixmap
  • QListBoxText
• QListViewItemIterator
• QLNode
• QMap
• QMapConstIterator
• QMapIterator
• QMenuData
  • QMenuBar
  • QPopupMenu
• QMetaObject
• QMetaProperty
• QMimeSource
  • QDragObject
  • QDropEvent
• QMimeSourceFactory
• QMovie
• QNPlugin
• QNPStream
• QPaintDevice
  • QPicture
  • QPixmap
    • QBitmap
  • QPrinter
  • QWidget
• QPaintDeviceMetrics
• QPalette
• QPixmapCache
• QPoint
• QRangeControl
  • QScrollBar
  • QSlider
  • QSpinBox
• QRect
• QRegExp
• QRegion
• QShared
  • QGLayoutIterator
• QSimpleRichText
• QSize
• QSizePolicy
• QString
  • QConstString
• Qt
  • QBrush
  • QCustomMenuItem
  • QEvent
    • QChildEvent
    • QCloseEvent
    • QCustomEvent
    • QDragLeaveEvent
    • QDropEvent
      • QDragMoveEvent
        • QDragEnterEvent
    • QFocusEvent
    • QHideEvent
    • QKeyEvent
    • QMouseEvent
    • QMoveEvent
    • QPaintEvent
    • QResizeEvent
    • QShowEvent
    • QTimerEvent
    • QWheelEvent
  • QIconViewItem
  • QListViewItem
    • QCheckListItem
  • QObject
    • QAccel
    • QApplication
      • QXtApplication
    • QClipboard
    • QDataPump
    • QDragObject
      • QIconDrag
      • QImageDrag
      • QStoredDrag
        • QColorDrag
        • QUriDrag
      • QTextDrag
    • QFileIconProvider
    • QLayout
      • QBoxLayout
        • QHBoxLayout
        • QVBoxLayout
      • QGridLayout
    • QNPInstance
    • QNetworkOperation
    • QNetworkProtocol
      • QLocalFs
    • QSessionManager
    • QSignal
    • QSignalMapper
    • QSocketNotifier
    • QStyle
      • QCommonStyle
        • QMotifStyle
          • QCDEStyle
        • QWindowsStyle
          • QPlatinumStyle
    • QStyleSheet
    • QTimer
    • QToolTipGroup
    • QTranslator
    • QUrlOperator
    • QValidator
      • QDoubleValidator
      • QIntValidator
    • QWidget
      • QButton
        • QCheckBox
        • QPushButton
        • QRadioButton
        • QToolButton
      • QComboBox
      • QDialog
        • QColorDialog
        • QFileDialog
        • QFontDialog
        • QInputDialog
        • QMessageBox
        • QTabDialog
        • QWizard
      • QFrame
        • QGrid
        • QGroupBox
          • QButtonGroup
            • QHButtonGroup
            • QVButtonGroup
          • QHGroupBox
          • QVGroupBox
        • QHBox
          • QVBox
        • QLCDNumber
        • QLabel
        • QMenuBar
        • QPopupMenu
        • QProgressBar
        • QScrollView
          • QIconView
          • QListBox
          • QListView
          • QTextView
            • QTextBrowser
        • QSpinBox
        • QSplitter
        • QTableView
          • QMultiLineEdit
        • QWidgetStack
      • QGLWidget
      • QHeader
      • QLineEdit
      • QMainWindow
      • QNPWidget
      • QScrollBar
      • QSemiModal
        • QProgressDialog
      • QSizeGrip
      • QSlider
      • QStatusBar
      • QTabBar
      • QTabWidget
      • QToolBar
      • QWorkspace
      • QXtWidget
  • QPainter
  • QPen
  • QPixmap
  • QStyleSheetItem
  • QToolTip
  • QWhatsThis
• QTab
• QTextCodec
  • QEucJpCodec
  • QEucKrCodec
  • QGbkCodec
  • QJisCodec
• QTextDecoder
• QTextEncoder
• QTextStream
  • QTextIStream
  • QTextOStream
• QTime
• QUrl
  • QUrlOperator
• QUrlInfo
• QValueList
• QValueListConstIterator
• QValueListIterator
• QVariant
• QWMatrix