#include typedef size_t (arearw)(void *p, size_t _size, size_t _n, void *file); typedef size_t (areaeof)(void *file); typedef int (areaseek)(void *file, long offset, int whence); typedef int (areaclose)(void *file); int PicoStateFP(void *afile, int is_save, arearw *read, arearw *write, areaeof *eof, areaseek *seek);