How to get the frame of a view inside another view?

Question

I have an UIImageView in the self.view (the main View) and inside it there is a UIButton. I want to know what\'s the frame of UI

Answer 1

Something like this? might be totally wrong, dint really thinkt it through ;p

CGRect frame = CGRectMake((self.view.frame.origin.x-imageview.frame.origin.x) +btn.frame.origin.x,
                          (self.view.frame.origin.y.imageview.frame.origin.y)+btn.frame.origin.y,
                          btn.frame.size.width,
                          btn.frame.size.height);

I don't know if theres any easier way.