Whan I want to use a signal of a private object in order to arise a signal of its parent object I do the following:
1. I create a signal and a slot (named, let's say, ParentSignal, ParentSlot)
2. connect(private_objcet, SIGNAL(someSignal()), this, SLOT(ParentSlot()));
3. and define parent slot like this:
void ParentSlot() { emit ParentSignal(); }
Is there any way to do this process directly, that is, without ParentSlot?