5 const unsigned char *buf)
void COM_Cont(double x, double y)
void COM_Bitmap(int ncols, int nrows, int threshold, const unsigned char *buf)
void COM_Point(double x, double y)
void(* Move)(double, double)
void(* Point)(double, double)
void COM_Move(double x, double y)
void(* Bitmap)(int, int, int, const unsigned char *)
void(* Cont)(double, double)