[PyQt] How to use QButtonGroup?
david at boddie.org.uk
Sun Nov 25 22:58:52 GMT 2007
On Sun Nov 25 14:05:39 GMT 2007, Sibylle Koczian wrote:
> I'm reading the documentation about QButtonGroup and QGroupBox and I don't
> quite understand the relationship between them.
I think the relationship between them in Qt 3 is a different to that in Qt 4,
so that might also be a cause of confusion for some people.
> I can create QRadioButtons and put them into a QGroupBox. That makes them
> visible and mutually exclusive. And, of course, I should put a layout
> between the box and the buttons. Right?
> If I put those same buttons into a QButtonGroup, then I can map them to
> integers, and I can connect the buttonClicked(int) signal of the group to a
> method or function that can use the id of the button. Still right?
> But there seems to be no connection between the QGroupBox and the
> QButtonGroup. I have to put each of my radio buttons into the box _and_ into
> the buttongroup. Right, or did I overlook something?
Yes, the QButtonGroup object just acts as a messenger for the buttons. You
still need to put them inside a widget, and a QGroupBox widget is usually the
sort of widget you would use.
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