###### (This is the legacy documentation for SDL2, the previous stable version; [SDL3](https://wiki.libsdl.org/SDL3/) is the current stable version.) # SDL_JoystickGetGUID Get the implementation-dependent GUID for the joystick. ## Header File Defined in [SDL_joystick.h](https://github.com/libsdl-org/SDL/blob/SDL2/include/SDL_joystick.h) ## Syntax ```c SDL_JoystickGUID SDL_JoystickGetGUID(SDL_Joystick *joystick); ``` ## Function Parameters | | | | | ------------------------------ | ------------ | -------------------------------------------------------------------------------------- | | [SDL_Joystick](SDL_Joystick) * | **joystick** | the [SDL_Joystick](SDL_Joystick) obtained from [SDL_JoystickOpen](SDL_JoystickOpen)(). | ## Return Value ([SDL_JoystickGUID](SDL_JoystickGUID)) Returns the GUID of the given joystick. If called on an invalid index, this function returns a zero GUID; call [SDL_GetError](SDL_GetError)() for more information. ## Remarks This function requires an open joystick. ## Version This function is available since SDL 2.0.0. ## See Also - [SDL_JoystickGetDeviceGUID](SDL_JoystickGetDeviceGUID) - [SDL_JoystickGetGUIDString](SDL_JoystickGetGUIDString) ---- [CategoryAPI](CategoryAPI), [CategoryAPIFunction](CategoryAPIFunction), [CategoryJoystick](CategoryJoystick)