How to set user data for a QWidget ?

To set user data for a QWidget:

Just try this link for more informations   QObject::setProperty()  and QWidget

Class  inherits from  the QWidget and an integer  type :

class MyDerivedWidget : public QWidget
{
    public:
  MyDerivedWidget();
   
    private:
  Data *myUserData;
};

By using the  setUserData