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

SDL_ThreadID

Get the thread identifier for the current thread.

Header File

Syntax

SDL_threadID SDL_ThreadID(void);

Return Value

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 2.0.0.