How to receive job status changes notifications?

Hello, I'm writing a GUI around Bacula (yeah, another one), and my
problem is I want to receive every job status change, e.g. if it's
running, failed, etc, to display to user interactively.

After digging far and wide, I figured the only way to do this is by
changing `bacula-dir.conf` to have:

    Messages {
      Name = Daemon
      append = "/tmp/dir-messages-named-pipe" = all, events, debug
    }

Per my understanding, this should send everything to
/tmp/dir-messages-named-pipe. I know for a fact job status changes are
part of the logs, because if you launch `bconsole` (assuming you have
`console = all` option) and execute `messages`, you see job status
changes info.

Yet somehow, even though it works for console, I never see that info
among messages coming to /tmp/dir-messages-named-pipe!

WDIDW?