Open a joystick for use.
The joystick subsystem must be initialized before a joystick can be opened for use.
the joystick instance ID.
a joystick identifier or NULL on failure; call SDL_GetError() for more information.
SDL_CloseJoystick
See Implementation
Open a joystick for use.
The joystick subsystem must be initialized before a joystick can be opened for use.