# SDL_JoystickInstanceID

Get the instance ID of an opened joystick.

## Header File

Defined in [SDL_joystick.h](https://github.com/libsdl-org/SDL/blob/SDL2/include/SDL_joystick.h)

## Syntax

```c
SDL_JoystickID SDL_JoystickInstanceID(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 a negative error code on failure; call
[SDL_GetError](SDL_GetError)() for more information.

## Version

This function is available since SDL 2.0.0.

## See Also

- [SDL_JoystickOpen](SDL_JoystickOpen)

----
[CategoryAPI](CategoryAPI), [CategoryAPIFunction](CategoryAPIFunction), [CategoryJoystick](CategoryJoystick)

