RadioAction.joinGroup

Joins a radio action object to the group of another radio action object.

Use this in language bindings instead of the [gtk.radio_action.RadioAction.getGroup] and [gtk.radio_action.RadioAction.setGroup] methods

A common way to set up a group of radio actions is the following:

GtkRadioAction *action;
 GtkRadioAction *last_action;

 while ( ...more actions to add... /)
   {
      action = gtk_radio_action_new (...);

      gtk_radio_action_join_group (action, last_action);
      last_action = action;
   }