int get_icon_count (long *data, int num);
long *get_best_icon (long *data, int icon_count, int num, int *iw, int *ih, int best_icon_size);
int get_icon_count (long *data, int num);
long *get_best_icon (long *data, int icon_count, int num, int *iw, int *ih, int best_icon_size);