What is the correct way of Multiple inheritance in Qt/C++?

Question

In my Qt application, I have a base class as follow. I am using QObject because I want to use Signal-Slot mechanism in all derived classes.

clas         


        

Answer 1

In the current incarnation, it isn't possible to use QObject in multiple inheritance paths for a derived class (like your IRzLayeringPlugin class). The only solution I've ever seen was to create an interface class without any QObject inheritence, but with functions that directly correspond to the QObject functions you want to use, then implement the bridge between the interface and your other QObject class inheritance in your specific class. It gets ugly fairly quickly.