What makes a controller a subcontroller?

Hi friends,

I've been tussling with DISPATCH_INPUT() and came to the conclusion that I am not really sure if my subcontrollers are officially subcontrollers. The only description i have for DISPATCH_INPUT is:

* if input is available, dispatch this input to subcomponent.
* this call is only necessary for toplevel controllers.
* ( if this is not a toplevel controller or no input is present,
*   this call returns without any action)

Subcomponent = subcontroller?

Anyway,...

According to the following image link, between scenario 1 and 2, which one really has subcontrollers?

http://img364.imageshack.us/img364/4289/subcontrollers8wm.gif

Thanks and Regards,

Kevin Wong

Message was edited by: Kevin Wong