# SDL_GetJoystickID Get the instance ID of an opened joystick. ## Header File Defined in [<SDL3/SDL_joystick.h>](https://github.com/libsdl-org/SDL/blob/main/include/SDL3/SDL_joystick.h) ## Syntax ```c SDL_JoystickID SDL_GetJoystickID(SDL_Joystick *joystick); ``` ## Function Parameters | | | | | ------------------------------ | ------------ | -------------------------------------------------------------------------- | | [SDL_Joystick](SDL_Joystick) * | **joystick** | an [SDL_Joystick](SDL_Joystick) structure containing joystick information. | ## Return Value ([SDL_JoystickID](SDL_JoystickID)) Returns the instance ID of the specified joystick on success or 0 on failure; call [SDL_GetError](SDL_GetError)() for more information. ## Version This function is available since SDL 3.2.0. ---- [CategoryAPI](CategoryAPI), [CategoryAPIFunction](CategoryAPIFunction), [CategoryJoystick](CategoryJoystick)