Re: GtkAda Problem

["Björn Persson" <spam-away@nowhere.nil>]

Oliver Doerler wrote:

> fidle_id := Gtk.Main.Idle_Add (fidle'access);
> 
> gnatmake Message:
> =>subprogram must not be deeper than access type

Did you declare fidle inside the main subprogram? Move it to a package. 
Idle_Callback is defined on what is called the library level. It's not 
allowed to point to something on a deeper level, and what's inside a 
subprogram is deeper. The rule is there to prevent pointers from 
pointing to something that can go out of scope and disappear before the 
pointer goes out of scope.

I think most beginners try to do this and get confused. I know I did.

-- 
Björn Persson                              PGP key A88682FD
                    omb jor ers @sv ge.
                    r o.b n.p son eri nu