###### (This is the documentation for SDL3, which is the current stable version. [SDL2](https://wiki.libsdl.org/SDL2/) was the previous version!) # SDL_GetCurrentThreadID Get the thread identifier for the current thread. ## Header File Defined in [](https://github.com/libsdl-org/SDL/blob/main/include/SDL3/SDL_thread.h) ## Syntax ```c SDL_ThreadID SDL_GetCurrentThreadID(void); ``` ## Return Value ([SDL_ThreadID](SDL_ThreadID)) Returns the ID of the current thread. ## Remarks This thread identifier is as reported by the underlying operating system. If SDL is running on a platform that does not support threads the return value will always be zero. This function also returns a valid thread ID when called from the main thread. ## Version This function is available since SDL 3.1.3. ## See Also - [SDL_GetThreadID](SDL_GetThreadID) ---- [CategoryAPI](CategoryAPI), [CategoryAPIFunction](CategoryAPIFunction), [CategoryThread](CategoryThread)