[gtkmm] Update graphical interface in loop;

[Rogério Samuel de Moura Martins <rsmm netu unisinos br>]

I create a loop:

   for(int i = 0; i < 100; ++i) {
      m_Label.setLabel((string)i);
   }

but the interface not update in looping.
what commnad insert to udpdate inteface?

   for(int i = 0; i < 100; ++i) {
      m_Label.setLabel((string)i);
      //>>> command for update interface;
   }

thanks#