[Development] qDebug, qWarning, qCritical, qFatal in Qt source code

[Kurt Pattyn]

Hi,

I would like to know if there are any guidelines about using qDebug and friends in Qt source code?
Recently I had to remove qWarning statements from a submit (for very plausible reasons), but a quick search through qtbase revealed a lot of qWarning statements.

So are there any rules of thumb?

Cheers,

Kurt