when trade.isSecondInterfaceOpen, I can not read the number of other items, the use of what "api" or a good solution?
(I was deceived, the first transaction window and the second transaction window, the number of different items)
If, isSecondInterfaceOpen, what "api" can read each other "value"
SecondInterfaceOpen, but the other has quickly removed items, bot in the automatic trading time, but no way to detect, because the final step of the transaction, can only determine whether the other party to accept ,,,, I hope that the last step through what verification