If the error code is 0 and the message is an empty character vector, then the login is successful.
Query for account information using the WDS connection, Account query
term, and login identifier. Use the login identifier returned by the
tradelogin function with the 'LogonID' name-value
pair argument.
q = 'Account';
logonid = d.LogonID;
d = query(c,q,'LogonID',logonid)
Login information, returned as a table with these variables:
Login identifier
Account number
Account type
Error code
Error message
WDS error identifier, returned as a numeric scalar. The value 0 indicates a
successful execution of the tradelogin function. Otherwise, for
details about the error, contact Wind Information Co., Ltd.