ToolTip not showing

[Jeroentjehome]

Hi guys,
Must be missing a piece of knowledge, but in designer I set the ToolTip and the duration for a QLabel in a QTabWidget. That QTabWidget is embedded into a Stackedwidget in a dialog. The tooltip is set via the setToolTip
in the ui_ file:
@
#ifndef QT_NO_TOOLTIP
labelSignalId->setToolTip(QApplication::translate("ConfigCanSignalWidget", "What is my designator", 0));
#endif // QT_NO_TOOLTIP
@
but that is set in the retranslateUi function, so called from the ui constructor.
What do I forget to do?
The tooltip is not showing at the given QLabel. I'm missing someting, but what?
Thanks for any help!

[butterface]

Have you tried to set the tooltip without any translation directly in the code just to make sure that this is not the problem in this case?

[Jeroentjehome]

Good idea, Will try!
<<testing>>
Nup, no change when setting the tooltip in code.
More options?

[butterface]

Any other tooltips work? If not, maybe the time after the tooltip is shown is wrong (e. g. s expected ms given, too short, ...)
Is any other widget overlapping the label?

[Jeroentjehome]

Nup, the tooltips on the MainWindow (toolbar/centralwidget) do work. I'm still a bit puzzled by it.

[Jeroentjehome]

Guess what I did wrong. Setting the tooltipduration to a small value will make the tooltip invisible! It is to short to show it! Did you leave that to -1??