From: Ceaser Larry <ceaserlarry@...>
Date: 2006-06-28T03:23:35+09:00
Subject: Define External Superclass in a extension

I'm trying to learn how to create a ruby extension. I've read the  
pick axe book but I'm running into a problem understanding how to get  
a reference to classes defined outside the ruby.h header.

My problem is how do I reference the DBI::BaseDriver as a super class  
to my object?

In C I understand I can use the following to define a new class

VALUE rb_cMyClass = rb_define_class("MyClass", rb_cObject)

somehow I need to replace rb_cObject with a reference to the  
DBI::BaseDriver like so

VALUE rb_cMyClass = rb_define_class("MyClass", [DBI::BaseDriver])

Any help or nudge in the right direction would be appreciated.

Thanks
Ceaser