title: How to get top position of TImage picture?
body: <p>I have a TImage with <code>Align := alClient</code>, <code>Stretch := True</code>, <code>Proportional := True</code> and <code>Center := True</code> inside a TPanel. How to get the top pixel position of the picture that is drawn in the image? </p>
  
  <p>Perhaps an image describing the problem will help:
  <a href="https://i.stack.imgur.com/frY9l.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/frY9l.png" alt="enter image description here"></a></p>
  
  <p>I saw this <a href="https://stackoverflow.com/q/1262023/1992767">question</a>, but could not get the answer for what I need which is closely related. </p>