Provided by: libsdl3-doc_3.2.20+ds-2_all 

NAME
SDL_TellIO - Determine the current read/write offset in an SDL_IOStream data stream.
SYNOPSIS
#include <SDL3/SDL_iostream.h>
Sint64 SDL_TellIO(SDL_IOStream *context);
DESCRIPTION
SDL_TellIO is actually a wrapper function that calls the SDL_IOStream's seek method, with an offset of 0
bytes from SDL_IO_SEEK_CUR, to simplify application development.
FUNCTION PARAMETERS
context
an SDL_IOStream data stream object from which to get the current offset.
RETURN VALUE
Returns the current offset in the stream, or -1 if the information can not be determined.
THREAD SAFETY
This function is not thread safe.
AVAILABILITY
This function is available since SDL 3.2.0.
SEE ALSO
SDL_SeekIO(3)
Simple Directmedia Layer SDL 3.2.20 SDL_TellIO(3)