Get the thread identifier for the current thread.
void); SDL_threadID SDL_ThreadID(
Returns the ID of the current thread.
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.
This function is available since SDL 3.0.0.
SDL_threadID threadID;
/* Retrieve our current thread identifier */
threadID = SDL_ThreadID();