ref: a0b15f88e6274b4892061a7dfe790d85eb211078
dir: /n_vbox.h/
extern char* NVBox_Type; typedef struct NVBox NVBox; struct NVBox { Nelem; DECL_ACCESSOR_OneParam(NVBox, Slot, Nelem*); DECL_ACCESSOR_OneParam(NVBox, SizeToContent, int); // private members Nlist children; int sizetocontent; }; NVBox* New_VBox(void);