a pointer to an SDL_IOStream structure.
an offset in bytes, relative to whence location; can be negative.
any of SDL_IO_SEEK_SET, SDL_IO_SEEK_CUR, SDL_IO_SEEK_END.
The final offset in the data stream after the seek or -1 on failure; call SDL_GetError() for more information.
Threadsafety: This function is not thread safe.
Seek within an SDL_IOStream data stream.
This function seeks to byte offset, relative to whence.
whence may be any of the following values:
- SDL_IO_SEEK_SET: seek from the beginning of data - SDL_IO_SEEK_CUR: seek relative to current read point - SDL_IO_SEEK_END: seek relative to the end of data
If this stream can not seek, it will return -1.