It is possible that Code Completions works with templates?
For example class wxListBox inherits from the wxControlWithItemsBase (indirectly, but that is not important) and wxWindowWithItems is class template as you can see below:
class wxControlWithItemsBase :
public wxWindowWithItems<wxControl, wxItemContainer>
{ };
template <class W, class C>
class wxWindowWithItems : public W, public C
{ };
Code Completion doesn't complete methods from wxControl nor wxItemContainer classes.
This feature would be quite helpful.