/// <summary>
/// 关闭聊天室
/// </summary>
/// <param name="roomId">聊天室ID</param>
/// <param name="notify">放到事件通知中的扩展字段</param>
/// <param name="cb">操作结果委托</param>
public static void CloseRoom(long roomId, string notify, CloseRoomDelegate cb)
{
var ptr = NimUtility.DelegateConverter.ConvertToIntPtr(cb);
ChatRoomNativeMethods.nim_chatroom_close_async(roomId, notify, null, CallbackBridge.OnRoomClosed, ptr);
}