On Thu, 22 Jan 2015 22:35:28 +0100, Mike Wey wrote:

• How is one supposed to inherit from classes the whose objects are automatically created by Builder?

I don't think you can, GtkBuilder wouldn't know how to instantiate the
derived class.

What about my MyWindow example? That way I can customize the window class, if only I could copy-construct its base class from the ApplicationWindow returned by the builder. Any way I can do that?