This inheritance list is sorted roughly, but not completely, alphabetically:

[detail level 123]

CMyClass
▶CMyForm
CMyForm
▶CQAbstractListModel
CIntListModel
▶CQAbstractTableModel
CTableModel
▶CQCommonStyle
CCustomStyle
▶CQDialog
CInputDialog
▶CQDrag
CWidgetDrag
▶CQEvent
CProgressEvent
▶CQFrame
CCustomWidget
▶CQGraphicsItem
CSimpleItem
▶CQGraphicsView
CMyView
▶CQGroupBox
CButtons
▶CQLabel
CBlinkLabel
CClock
CDrag
CDrop
CMouseObserver
CResizeObserver
CSystemTray
CWidget
CWindow
▶CQMacCocoaViewContainer
CButtonContainer
▶CQMainWindow
CMainWindow
CMainWindow
CMDIProgram
CPluginsWindow
CSDIProgram
▶CQMimeData
CWidgetMimeData
▶CQObject
CCalculation
CCounter
CCppConnection
CDownloader
CJSTools
CKeyFilter
CMouseFilter
CMyPlugin
CMyWorker
CTest_MyClass
CTest_MyClass
CTest_QLineEdit
▶CQOpenGLWidget
COGLDraw
COGLPyramid
COGLQuad
▶CQProgressBar
CMyProgressBar
▶CQPushButton
CStartDialog
▶CQQuickImageProvider
CImageProvider
▶CQQuickPaintedItem
CEllipse
▶CQStyledItemDelegate
CSimpleDelegate
▶CQSyntaxHighlighter
CSyntaxHighlighter
▶CQTextEdit
CContextMenu
CDocWindow
CDocWindow
CUdpClient
CUdpServer
CViewer
▶CQThread
CMyThread
CMyThread
▶CQValidator
CNameValidator
▶CQWidget
CCalculator
CConicalGradientWidget
CDownloaderGui
CDrawTextWidget
CDrawTextWidget
CElidedText
CFileFinder
CGrabWidget
CHelpBrowser
CImageDraw
CLinearGradientWidget
CLoadMyForm
CMacButton
CMultiTouchWidget
CMyApplication
CMyClient
CMyForm
CMyProgram
CMyServer
CMyWidget
CMyWidget
CMyWidget
CPainterPathWidget
CPrinter
CProgress
CRadialGradientWidget
CShell
▶CSoundPlayer
CVideoPlayer
CStartDialog
CStartDialog
CTurtle
CTurtleWorkArea
CWebBrowser
CWinAPI
▶CQWizard
CWizard
▶CQXmlDefaultHandler
CAddressBookParser
▶CStringInterface
CMyPlugin