###### (This is the documentation for SDL3, which is the current stable version. [SDL2](https://wiki.libsdl.org/SDL2/) was the previous version!) # SDL_DelayNS Wait a specified number of nanoseconds before returning. ## Header File Defined in [](https://github.com/libsdl-org/SDL/blob/main/include/SDL3/SDL_timer.h) ## Syntax ```c void SDL_DelayNS(Uint64 ns); ``` ## Function Parameters | | | | | ---------------- | ------ | ----------------------------------- | | [Uint64](Uint64) | **ns** | the number of nanoseconds to delay. | ## Remarks This function waits a specified number of nanoseconds before returning. It waits at least the specified time, but possibly longer due to OS scheduling. ## Thread Safety It is safe to call this function from any thread. ## Version This function is available since SDL 3.1.3. ---- [CategoryAPI](CategoryAPI), [CategoryAPIFunction](CategoryAPIFunction), [CategoryTimer](CategoryTimer)