void init_(int,int,int,int,int,char *);
void view_(int,int,int,int);
void window_(int,int,int,int);
void screen_(int,int);
void cls_(void);
void cls2_(int,int,int,int,int);
void xflush_(void);
void mode_(int);
void color_(int,int,int,int);
void gcolor_(int);
void lcolor_(int);
void pcolor_(int);
void chcolr_(int);
void blcolr_(int);
void lwidth_(int);
void lstyle_(int);
void line_(int,int,int,int);
void line2_(int,int,int,int,int,int);
void arrowline_(int,int,int,int);
void move_(int,int);
void lineto_(int,int);
void arc_(int,int,int,int,int,int,int);
void sector_(int,int,int,int,int,int,int);
void polygon_(int,short *);
void zigzag_(int,short *);
void pmode_(int);
void paint_(int,int,int);
void box_(int,int,int,int);
void circle_(int,int,int);
void ellips_(int,int,int,int);
void pset_(int,int,int);
void psethline_(int,int,int,unsigned short *);
void charac_(int,int,char *);
double random_(int);
void closex_(int); 
int mouse_(int *,int *);
int mbox_(int *,int *,int *,int *);