PAIR_NUMBER
short oldcolor = (short) PAIR_NUMBER(oldmode & A_COLOR);
short newcolor = (short) PAIR_NUMBER(newmode & A_COLOR);
extern short PAIR_NUMBER(chtype);
(PAIR_NUMBER)(chtype at)
cc->_co = (short) PAIR_NUMBER(ch);
extern int PAIR_NUMBER(int);
cc->_co = (short)PAIR_NUMBER((int)ch);