[Quickfix-users] How to change the value of fields in Logon(A) message?

[Bin F. <bfa...@gm...>]

hi everyone,

I got a very quick, maybe very silly question to ask you. 

How can I change the value of fields in Logon(A) message in quickfix, i.e. I want to set ResetSeqNumFlag[141] manually for logging in?  

I tried to put a sentence of ResetSeqNumFlag=Y in the cfg file, however it doesn't work. Moreover, I tried to put it in Application::onLogon(...) function, but it turned out that is not the correct place to put. For other messages, no matter if it is session level or application level, I could always use Session::SendtoTarget(...) after the connection estabished between the counterparties. However, I don't think I can use this function to send the initial Logon(A) message. am I right?

Can anyone let me know how to do that? 

thank you very much.

Bin