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

[detail level 123456]

CKDDockWidgets::Config	Singleton to allow to choose certain behaviours of the framework
CLayouting::Config
CKDDockWidgets::FocusScope	Allows to implement a similar functionality to QtQuick's FocusScope item, in QtWidgets
CKDDockWidgets::InitialOption	Struct describing the preferred dock widget size and visibility when adding it to a layout
CKDDockWidgets::LayoutSaver	LayoutSaver allows to save or restore layouts
▼CQObject [external]
▼CKDDockWidgets::FrameworkWidgetFactory	A factory class for allowing the user to customize some internal widgets. This is optional, and if not provided, a default one will be used, DefaultWidgetFactory
CKDDockWidgets::DefaultWidgetFactory	The FrameworkWidgetFactory that's used if none is specified
▼CQWidget [external]
CLayouting::SeparatorWidget
▼CQMainWindow [external]
▼CKDDockWidgets::MainWindowBase	The MainWindow base-class. MainWindow and MainWindowBase are only split in two so we can share some code with the QtQuick implementation, which also derives from MainWindowBase
▼CKDDockWidgets::MainWindow	The QMainwindow sub-class that the application should use to be able to dock KDDockWidget::DockWidget instances
CKDDockWidgets::MainWindowMDI	MainWindow sub-class which uses MDI as a layout
▼CQPaintDevice [external]
CQWidget [external]
▼CQQuickItem
CLayouting::RubberBand
CLayouting::SeparatorQuick
▼CQWidgetAdapter
▼CKDDockWidgets::DockWidgetBase	The DockWidget base-class. DockWidget and DockWidgetBase are only split in two so we can share some code with the QtQuick implementation, which also derives from DockWidgetBase
CKDDockWidgets::DockWidget	Represents a dock widget
CKDDockWidgets::DockWidgetQuick	Represents a dock widget
CKDDockWidgets::LayoutGuestWidget	LayoutGuestWidget is the type that Item will host
CKDDockWidgets::RubberBandQuick
▼CSeparator
CLayouting::SeparatorQuick
CLayouting::SeparatorWidget
▼CLayouting::Widget	An abstraction/wrapper around QWidget, QtQuickItem or anything else
▼CLayouting::Widget_quick	A Layouting::Widget that's deals in QQuickItem Allows to host a QQuickItem in the layout
CLayouting::RubberBand
CLayouting::SeparatorQuick
▼CLayouting::Widget_qwidget	A Layouting::Widget that's deals in QWidget Allows to host a QWidget in the layout
CKDDockWidgets::LayoutGuestWidget	LayoutGuestWidget is the type that Item will host
CLayouting::SeparatorWidget