Get the implementation-dependent GUID of a gamepad.
This can be called before any gamepads are opened.
the joystick instance ID.
the GUID of the selected gamepad. If called on an invalid index, this function returns a zero GUID.
SDL_GUIDToString SDL_GetGamepads
See Implementation
Get the implementation-dependent GUID of a gamepad.
This can be called before any gamepads are opened.