Re: where is error?

[Murray Cumming <murrayc murrayc com>]

On Mon, 2006-08-07 at 20:44 +0300, Paul Pogonyshev wrote:
> Murray Cumming wrote:
> > Gtk::RadioAction must be used via a RefPtr, obtained via its create()
> > function. The same is true for derived classes, so you'll need to add a
> > create() function that returns a RefPtr.
> 
> This certainly won't help anything since the crash happens when the
> constructor is executed.

I suggested that you try gdb or valgrind rather than that you ask me to
try them for you.

>   Creating a RefPtr _afterwards_ won't change
> anything.  Calling Gtk::RadioAction::create () creates Gtk::RadioAction,
> not an object of the derived class.  

That's why you must implement your own create() method.

> So, it seems to be impossible to
> derive from Gtk::RadioAction at all, at least with Gtkmm 2.4.10.

If the constructor is protected (not private) then you can do this.

-- 
Murray Cumming
murrayc murrayc com
www.murrayc.com
www.openismus.com