friend class BC_Tumbler;
friend class BC_Window;
friend class BC_WindowEvents;
+ friend class Shuttle;
// Main loop
int run_window();
int lock_window(const char *location = 0);
int unlock_window();
int get_window_lock();
+ int break_lock();
BC_MenuBar* add_menubar(BC_MenuBar *menu_bar);
BC_WindowBase* add_subwindow(BC_WindowBase *subwindow);