hi, I'm sorry for not fast reply.
I have 3 instances (a,b,c) of MyWidget class. I'd like a function of widget 'a' that change the state of 'b' and 'c'
I can use a variable index++ and an if (index==1) then....but after recognize the widget 'a', I must call a particular function member of widget 'b' and 'c'.
(but using index++: Are the order of the constructors the same every time???).