Why I cannot get help (when F1 is pressed) on QDialog::tr(" ")

[tonnot]

QDialog::tr(" ")
I see this function in some messagebox tutorial.
It can be used to supply quickly a string (QString) to a messagebox
But
- I dont know from where this function is called (Qwidget ?)
- I dont know why is the reason I can not get the help ...
Any idea ?

[tbscope]

I don't know why F1 wouldn't work, but you can always check the online documentation too:
http://doc.qt.nokia.com/4.7/qobject.html#tr