Re: Conceptual Question on Signal Handling in Subclasses

[Havoc Pennington <hp redhat com>]

Ian Flanigan <flan lean to> writes:
> Havoc Pennington writes:
>  > 
>  > I would suggest using virtual functions. You can do this in several
>  > ways:
>  >   - just use that C++ feature and build with a C++ compiler
>  >   - just have a variable in your struct:
>  >        void (* do_whatever) (blah blah);
>  >   - use the GtkObject system and derive GtkObjects
>
> Since I'm not using C++, the first option is out.  The second option
> is one of the ways I thought of.  But I'm not sure what you mean by
> the third option -- I thought that's what I was doing already.  Can
> you explain in more detail?

Write a custom object derived from GtkObject using the GTK object/type
system. See for example the source code for any widget in GTK.

It involves knowing a lot about the GTK object/type system, so you may
not want to go there.

Havoc