Re: [gtk-list] Dynamic class creation?

[Kenneth Albanowski <kjahds kjahds com>]

On Wed, 2 Sep 1998, Johannes Keukelaar wrote:

> Hi *,
> 
> An admittedly unusual question: Is there anything in the gtk+ architecture that 
> would make it impossible to dynamically create object classes?

Classes can definitely be dynamically created -- this is obvious, because
the usual GUI classes are not created until the first reference.

I'm not sure whether there are any deletion facilities.

> In a project I'm working on, I'd like to use the gtk+ object system as basis 
> for some datastructures I'll be creating. These datastructures would be of some 
> kind of parametrized type, with complicated parameters, but possibly many 
> instances of each individual parametrized type. The actual parameters to be 
> used will only be available during runtime (so things will be more easily 
> extensible). So, I could store these complicated parameters in a separate 
> structure, and point to that from the individual objects, or I could put this 
> information in the object classes, but then I'd have to create them at runtime. 
> Is this possible?

You can very easily store all sorts of data in any sort of object. Look at
the gtk_object_set/get_data functions.

-- 
Kenneth Albanowski (kjahds@kjahds.com, CIS: 70705,126)