I am facing with some issue and I don't have any idea how to fix that..
Generally, I want to use FIX API and the format should be like below:

"8=FIX.4.4|9=124|35=A|49=broker.1111111|56=ser ver"
I noticed that it does not work in this format, but it works when I changed | sign to . Weird, but I think it is connected somehow with unicode coding...
In that that it was good and it worked.

Unfortunately, since some time, (I don't know why) the connection with the API does not work, because I noticed, the sent message does not look like:
"8=FIX.4.49=12435=A49=broker.111111156=ser ver"
..but it looks:
Sending... "8=FIX.4.4\u00019=124\u000135=A\u000149=broker.111 1111\u000156=server
The sending code is below.
Qt Code:
  1. QString refMsg2 = "8=FIX.4.4|9=124|35=A|49=broker.1111111|56=server";
  2. refMsg2.replace("|", "");
  3. qDebug() << "Sending... " << refMsg2;
  4. socket->write(refMsg2.toStdString().c_str());
To copy to clipboard, switch view to plain text mode 

The Question is: do you know whe I see "\u0001" now?

I think it does not work (there is no response from API) because write method of socket takes const char* argument and it changes something (there must be casting to stdString and call of c_str method)?

Do you have any ideas?
Thanks in advance!