SDL Wiki
(This is the legacy documentation for stable SDL2, the current stable version; SDL3 is the current development version.)


Get the thread identifier for the specified thread.

Header File

Defined in SDL_thread.h


SDL_threadID SDL_GetThreadID(SDL_Thread * thread);

Function Parameters

SDL_Thread * thread the thread to query.

Return Value

(SDL_threadID) Returns the ID of the specified thread, or the ID of the current thread if thread is NULL.


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 is available since SDL 2.0.0.

See Also

CategoryAPI, CategoryAPIFunction, CategoryThread

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