###### (This is the legacy documentation for stable SDL2, the current stable version; [SDL3](https://wiki.libsdl.org/SDL3/) is the current development version.) # SDL_RWtell Determine the current read/write offset in an [SDL_RWops](SDL_RWops) data stream. ## Syntax ```c Sint64 SDL_RWtell(SDL_RWops *context); ``` ## Function Parameters | | | | --------------- | -------------------------------------------------------------------------------- | | **context** | a [SDL_RWops](SDL_RWops) 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_RWtell](SDL_RWtell) is actually a wrapper function that calls the [SDL_RWops](SDL_RWops)'s `seek` method, with an offset of 0 bytes from `RW_SEEK_CUR`, to simplify application development. Prior to SDL 2.0.10, this function was a macro. ## Version This function is available since SDL 2.0.10. ## Related Functions * [SDL_RWclose](SDL_RWclose) * [SDL_RWFromConstMem](SDL_RWFromConstMem) * [SDL_RWFromFile](SDL_RWFromFile) * [SDL_RWFromFP](SDL_RWFromFP) * [SDL_RWFromMem](SDL_RWFromMem) * [SDL_RWread](SDL_RWread) * [SDL_RWseek](SDL_RWseek) * [SDL_RWwrite](SDL_RWwrite) ---- [CategoryAPI](CategoryAPI)