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
• QBrush
• QCollection
  • QGCache
    • QCache
    • QIntCache
  • QGDict
    • QDict
    • QIntDict
    • QPtrDict
  • QGList
    • QList
      • QStrList
        • QStrIList
    • QQueue
    • QStack
• QColor
• QColorGroup
• QConnection
• QCursor
• QDataStream
• QDate
• QDateTime
• QDir
• QEvent
  • QChildEvent
  • QCloseEvent
  • QCustomEvent
  • QFocusEvent
  • QKeyEvent
  • QMouseEvent
  • QMoveEvent
  • QPaintEvent
  • QResizeEvent
  • QTimerEvent
• QFileInfo
• QFocusData
• QFont
• QFontInfo
• QFontMetrics
• QGArray
  • QArray
    • QByteArray
      • QBitArray
      • QString
    • QPointArray
• QGCacheIterator
  • QCacheIterator
  • QIntCacheIterator
• QGDictIterator
  • QDictIterator
  • QIntDictIterator
  • QPtrDictIterator
• QGLContext
• QGLFormat
• QGListIterator
  • QListIterator
• QIconSet
• QImage
• QImageConsumer
• QImageDecoder
• QImageFormat
  • QGIFFormat
• QImageFormatType
  • QGIFFormatType
• QImageIO
• QIODevice
  • QBuffer
  • QFile
• QListBoxItem
  • QListBoxPixmap
  • QListBoxText
• QListViewItem
  • QCheckListItem
• QLNode
• QMenuData
  • QMenuBar
  • QPopupMenu
• QMovie
• QNPlugin
• QNPStream
• QObject
  • QAccel
  • QApplication
    • QXtApplication
  • QClipboard
  • QDataPump
  • QFileIconProvider
  • QGManager
  • QLayout
    • QBoxLayout
      • QHBoxLayout
      • QVBoxLayout
    • QGridLayout
  • QNPInstance
  • QSignal
  • QSignalMapper
  • QSocketNotifier
  • QTimer
  • QToolTipGroup
  • QValidator
    • QDoubleValidator
    • QIntValidator
  • QWidget
    • QButton
      • QCheckBox
      • QPushButton
      • QRadioButton
      • QToolButton
    • QComboBox
    • QDialog
      • QFileDialog
      • QMessageBox
      • QPrintDialog
      • QTabDialog
    • QFrame
      • QGroupBox
        • QButtonGroup
      • QLCDNumber
      • QLabel
      • QMenuBar
      • QProgressBar
      • QScrollView
        • QListView
      • QSpinBox
      • QSplitter
      • QTableView
        • QHeader
        • QListBox
        • QMultiLineEdit
        • QPopupMenu
      • QWidgetStack
    • QGLWidget
    • QLineEdit
    • QMainWindow
    • QNPWidget
    • QScrollBar
    • QSemiModal
      • QProgressDialog
    • QSlider
    • QStatusBar
    • QTabBar
    • QToolBar
    • QWindow
    • QXtWidget
• QPaintDevice
  • QPicture
  • QPixmap
    • QBitmap
  • QPrinter
  • QWidget
• QPaintDeviceMetrics
• QPainter
• QPalette
• QPen
• QPixmapCache
• QPoint
• QPointVal
• QRangeControl
  • QScrollBar
  • QSlider
  • QSpinBox
• QRect
• QRegExp
• QRegion
• QShared
• QSize
• QTextStream
• QTime
• QToolTip
• QWhatsThis
• QWMatrix