###### (This is the documentation for SDL3, which is under heavy development and the API is changing! [SDL2](https://wiki.libsdl.org/SDL2/) is the current stable version!) # SDL_GetJoystickSerial Get the serial number of an opened joystick, if available. ## Syntax ```c const char * SDL_GetJoystickSerial(SDL_Joystick *joystick); ``` ## Function Parameters | | | | ---------------- | ------------------------------------------------------------------------------------- | | **joystick** | the [SDL_Joystick](SDL_Joystick) obtained from [SDL_OpenJoystick](SDL_OpenJoystick)() | ## Return Value Returns the serial number of the selected joystick, or NULL if unavailable. ## Remarks Returns the serial number of the joystick, or NULL if it is not available. ## Version This function is available since SDL 3.0.0. ---- [CategoryAPI](CategoryAPI)