Is there a way to know the current widget of the app ?

[tonnot]

I would want to know if I can determine in a Class_B who is the active or current widget of my application.
By other side, supposing my app is showing a form, any way to know the 'toplevel' parent ?
Thanks

[Zlatomir]

If by active you mean the widget which receives user input, than you have hasFocus() (http://doc.trolltech.com/latest/qwidget.html#focus-prop)
And QObject has (QWidget is derived from it so it has this too) parent() (http://doc.trolltech.com/latest/qobject.html#parent) member function which returns a pointer to the parent object.

[Lykurg]

You can also have a look at QApplication::focusWidget().

[wysota]

any way to know the 'toplevel' parent ?
QWidget::window()

[tonnot]

Thanks to everybody