OK, when it is gintro related then your initial post is really not that smart.
Inheritance for C libs in different from inheritance in Nim . C is not an OOP language. I would strongly suggest YOU not using gintro! I have recently listed most of the Nim GUI packages here, located directly above Chapter 1 heading: [http://ssalewski.de/gtkprogramming.html](http://ssalewski.de/gtkprogramming.html) All that packages are great. If I miss other packages please let me know. If you will still continue with gintro, I gave an example of subclassing here: [http://ssalewski.de/gintroreadme.html#_extending_or_sub_classing_widgets](http://ssalewski.de/gintroreadme.html#_extending_or_sub_classing_widgets) It is not well tested, and it is different from native Nim and different from GObject C subclassing. As we use proxy objects in gintro. Nim inheritance is explained here: [http://ssalewski.de/nimprogramming.html#_object_orientated_programming_and_inheritance](http://ssalewski.de/nimprogramming.html#_object_orientated_programming_and_inheritance)
