Set the player index of an opened joystick.
int SDL_SetJoystickPlayerIndex(SDL_Joystick *joystick, int player_index);
|joystick||the SDL_Joystick obtained from SDL_OpenJoystick()|
|player_index||Player index to assign to this joystick, or -1 to clear the player index and turn off player LEDs.|
Returns 0 on success or a negative error code on failure; call SDL_GetError() for more information.
This function is available since SDL 3.0.0.