ref: c04fd4ce67a03c04b342c38185523bb834f4e0b7
dir: /n_window.h/
extern char* NWindow_Type; typedef struct NWindow NWindow; struct NWindow { Nelem; DECL_ACCESSOR_OneParam(NWindow, Slot, Nelem*); DECL_ACCESSOR(NWindow, MakeRoot); // private members Nlist child; }; NWindow* New_Window(void);