AK_Fail if the specified AkGameObjectID is invalid (0 is an invalid ID)
意見:
Registering a game object twice does nothing. Unregistering it once unregisters it no matter how many times it has been registered. Unregistering a game object while it is in use is allowed, but the control over the parameters of this game object is lost. For example, say a sound associated with this game object is a 3D moving sound. This sound will stop moving when the game object is unregistered, and there will be no way to regain control over the game object.