# SDL_ThreadState The SDL thread state. ## Header File Defined in [<SDL3/SDL_thread.h>](https://github.com/libsdl-org/SDL/blob/main/include/SDL3/SDL_thread.h) ## Syntax ```c typedef enum SDL_ThreadState { SDL_THREAD_UNKNOWN, /**< The thread is not valid */ SDL_THREAD_ALIVE, /**< The thread is currently running */ SDL_THREAD_DETACHED, /**< The thread is detached and can't be waited on */ SDL_THREAD_COMPLETE /**< The thread has finished and should be cleaned up with SDL_WaitThread() */ } SDL_ThreadState; ``` ## Remarks The current state of a thread can be checked by calling [SDL_GetThreadState](SDL_GetThreadState). ## Version This enum is available since SDL 3.2.0. ## See Also - [SDL_GetThreadState](SDL_GetThreadState) ---- [CategoryAPI](CategoryAPI), [CategoryAPIEnum](CategoryAPIEnum), [CategoryThread](CategoryThread)