__waddbytes
int __waddbytes(WINDOW *, const char *, int, attr_t);
#define addbytes(s, n) __waddbytes(stdscr, s, n, 0)
#define waddbytes(w, s, n) __waddbytes(w, s, n, 0)
(wmove(w, y, x) == ERR ? ERR : __waddbytes(w, s, n, 0))