Use this function to create an SDL_RWops structure from a standard I/O file pointer (stdio.h's FILE*).
SDL_RWops* SDL_RWFromFP(void* fp, SDL_bool autoclose)
the FILE* that feeds the SDL_RWops stream
SDL_TRUE to close the FILE* when closing the SDL_RWops, SDL_FALSE to leave the FILE* open when the RWops is closed
FILE *fp = fopen("myfile.dat", "rb"); SDL_RWops *rw = SDL_RWFromFP(fp, SDL_TRUE); /* Do things with rw... */ SDL_RWclose(rw); /* Automatically does an fclose(fp) in this case */
This function is not available on Windows, since files opened in an application on that platform cannot be used by a dynamically linked library.
On some platforms, the first parameter is a void*, on others, it's a FILE*, depending on what system headers are available to SDL. It is always intended to be the FILE* type from the C runtime's stdio.h.