mvwaddch
extern int mvwaddch(WINDOW *, int, int, chtype);
(mvwaddch)(WINDOW *w, int y, int x, chtype ch)
extern int mvwaddch(WINDOW *, int, int, chtype);
#define mvaddch(y, x, ch) mvwaddch(stdscr, y, x, ch)
(void) mvwaddch(curscr, win->_cury + win->_begy,
(void) mvwaddch(win2, y2, x, *sp);