[gtkmm] Gtk::Widget types

[Liza Klerck <liza trdlnk com>]

Hi,

If I have a Gtk::Widget *, is there a way for me to check what type of 
widget it is ? I am using Gtk2.

For example:

void do_someting (Gtk::Widget *widget)
{
  if widget is a Gtk::Label then do this ...
    if widget is a Gtk::Button then do this ...
  }

Thanks !
Liza