mvwget_wch
#define mvwget_wch(w,y,x,wcp) (wmove(w,y,x)?ERR:wget_wch(w,wcp))
#undef mvwget_wch
mvwget_wch(w, y, x, wcp)
#define mvwget_wch(w, y, x, wcp) \
#undef mvwget_wch
mvwget_wch(WINDOW *w, int y, int x, wint_t *wcp)