Hi Denis,
thanks (again) for the answer..
look at QgsDataDefinedButton::init
That should set up the button for a layer.
It is not a slot though, not sure if you can connect this directly, you
might need to create an intermediate method.
ok so you think something like
self.dataDefined.__init__(vl=self.LayerCombo.currentLayer())
to put in the __init__ method of the class right?
Thanks again
Matteo
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