Re: typecast from Gtk::Widget to Gtk::Toolbar?

[Bob Caryl <bob fis-cal com>]

Jonathon is right, my method (which harks back to my many years as a 
plain "C" programmer) would result in a serious error if not an outright 
segmentation fault if the cast were invalid.  Sorry about that guys.

Bob

ZeeGeek wrote:

> On 1/11/06, Jonathon Jongsma <jonathon jongsma gmail com> wrote:
>  
>
> > There's probably not much difference here practically speaking.
> > Theoretically dynamic_cast might be safer since it does some run-time
> > type-checking to make sure that the cast is legal.  dynamic_cast is
> > "the C++ way", but the other way is still valid.
> >
> > Jonner
> >
> >    
> thank you.
>
>  
>
> > On 1/10/06, ZeeGeek <zeegeek gmail com> wrote:
> >    
> >
> > > On 1/11/06, Bob Caryl <bob fis-cal com> wrote:
> > >      
> > >
> > > > You should be able to write something like:
> > > >
> > > > Gtk::UIManager ui;
> > > > // ui has been initialized somewhere in between
> > > > Gtk::Toolbar *mytoolbar =  (Gtk::Toolbar *)ui.get_widget("/Toolbar");
> > > >
> > > > since Gtk::Toolbar is descended from Gtk::Widget, but be sure to check
> > > > that the returned pointer is not NULL before using it.
> > > >
> > > >        
> > > B.Hakvoort <bart hakvoort be> wrote:
> > >      
> > >
> > > > maybe with a Gtk::Toolbar * p_toolbar =
> > > > dynamic_cast<Gtk::Toolbar
> > > > *>( Gtk::UIManager::get_widget("/Toolbar") ) ; ?
> > > >        
> > > Both method work, thank you all!
> > > Is there any differences between these two methods?
> > >
> > > --
> > > My blog: http://ihome.ust.hk/~cs_snx/blog/
> > >
> > > Dell Inspiron 600m
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> > > _______________________________________________
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> > >
> > >      
>
>
> --
> My blog: http://ihome.ust.hk/~cs_snx/blog/
>
> Dell Inspiron 600m
> Pentium-M 1.6G
> 512MB, 60G
> ATI 9000 Mobility
> _______________________________________________
> gtkmm-list mailing list
> gtkmm-list gnome org
> http://mail.gnome.org/mailman/listinfo/gtkmm-list
>
>  

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