TCustomTreeView = class(TWinControl)
class PASCALIMPLEMENTATION TCustomTreeView : public Vcl::Controls::TWinControl
TCustomTreeView is the base type for tree-view components such as TTreeView.
Use TCustomTreeView as a base class when defining controls that present information in a hierarchical structure with nodes that can be expanded or collapsed. Most of the properties defined in TCustomTreeView are protected so that you can choose whether to publish them in your own tree view components.
Do not create instances of TCustomTreeView. Use the generic descendant TTreeView, or create your own descendant class.