struct IChatListener { };
INetworkService.h
virtual ~IChatListener();
virtual void ChatUser(const char* nick, EChatUserStatus st) = 0;
virtual void Joined(EChatJoinResult) = 0;
virtual void Message(const char* from, const char* message, ENetworkChatMessageType type) = 0;
virtual void OnChatKeys(const char* user, int num, const char** keys, const char** values) = 0;
virtual void OnError(int err) = 0;
virtual void OnGetKeysFailed(const char* user) = 0;