Seek to offset relative to whence, one of stdio's whence values: SDL_IO_SEEK_SET, SDL_IO_SEEK_CUR, SDL_IO_SEEK_END
The final offset in the data stream, or -1 on error.
See Implementation
Seek to offset relative to whence, one of stdio's whence values: SDL_IO_SEEK_SET, SDL_IO_SEEK_CUR, SDL_IO_SEEK_END