Which QCheckBox has been checked?

[alexandernst]

I have 3 QCheckBox'es and I would like to know which one has been checked.
I use this to connect them:

QObject.connect(self.ui.checkbox1, SIGNAL("toggled(bool)"), self.__on_check)
QObject.connect(self.ui.checkbox2, SIGNAL("toggled(bool)"), self.__on_check)
QObject.connect(self.ui.checkbox3, SIGNAL("toggled(bool)"), self.__on_check)

QObject.connect(self.ui.checkbox1, SIGNAL("toggled(bool)"), self.__on_check)
QObject.connect(self.ui.checkbox2, SIGNAL("toggled(bool)"), self.__on_check)
QObject.connect(self.ui.checkbox3, SIGNAL("toggled(bool)"), self.__on_check)

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(this is python)

Thanks