(This is the documentation for SDL3, which is under heavy development and the API is changing! SDL2 is the current stable version!)

SDL_TellIO

Determine the current read/write offset in an SDL_IOStream data stream.

Header File

Syntax

Sint64 SDL_TellIO(SDL_IOStream *context);

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.

Remarks

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.

Version

This function is available since SDL 3.0.0.