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how to get the updated UIImageView size (width and hight) when using UIPinchGestureRecognizer in iphone

I am add a UIImage in UI开发者_如何学编程ImageView. the i am apply UIPinchGestureRecognizer on UIImageView. i want to find updated UIImageView.frame=(x,y,width,hight). please give suggestion

thanx.

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