Hello everybody, I just started developing IPhone apps. My problem is that I can't figure out how to know the position of an UIView. - I start an animation on a UIView (asking to go to another position in 5 seconds). - I have a thread which, 10 times per second, try to determine the position of the UIView. This is where I'm stucked. A call to CGPoint position = [sprite position] (where sprite is an UIImageView) doesn't compile: => error: invalid initializer If I use the 'frame' field of UIView, I have a weird result: x is 88 (instead of 100), y is -60 (instead of 460), furthermore, these coordinates doesn't change, even when the animation is being proceed. What am I doing wrong ? Thanks for reading me and helping me if you have any idea. -- Cheers, Nico.