Get the thread identifier for the current thread.
Defined in <SDL3/SDL_thread.h>
SDL_ThreadID SDL_GetCurrentThreadID(void);(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 3.2.0.