QTreeView details: what are viewItems?

[neuronet]

The d-pointer idiom is used to keep the public API of QTreeView binary stable while still having the option of adding/removing/renaming functions necessary for the view's procesing.

The d-pointer points to a private class that holds the actual implementation of the view, often also referred to as PIMPL idiom (pointer to implementation).

The Q_D() and Q_Q() macros enable const correct access to the private and public class respectively.

The class you are looking for ist QTreeViewPrivate

Cheers,
_

Thanks I will ruck about see what I figure out and post here.