static void RegisterSendMsgArcCallback() { ChatRoomNativeMethods.nim_chatroom_reg_send_msg_arc_cb(null, OnSendMsgCompleted, IntPtr.Zero); }
static void RegisterSendMsgArcCallback() { ChatRoomNativeMethods.nim_chatroom_reg_send_msg_arc_cb(null, OnSendMsgCompleted, IntPtr.Zero); }