Re: New to GObject, few questions

["Ricardo Malafaia" <rmalafaia gmail com>]

On 7/21/06, Tomasz Jankowski <tomcioj gmail com> wrote:
> I. What the Interfaces are?

of course you know what Interfaces are.  You've probably been dealing
with Application Programming Interfaces and C headers for a long time.
They represent the public functionality and data type declarations
presented by an object translation unit -- the Interface to the
module.

In the specific case of object-oriented programming, Interfaces are
simply abstract classes with just method declarations, no
implementation.  They can be implemented by various classes of
objects, so as long as a class implements the methods presented by a
given Interface, we say it implements the Interface.  It's a kind of
"virtual inheritence".

just to illustrate how the concept of an interface is simple:

/*
* isorteable.h
*/
void sort( void *ls, int (*cmp)(void *a, void *b) );

you can then have a big variety of .c files complying with this
interface, but implementing it with diverse sorting methods (merge
sort, quick sort etc)...

nothing new, really...