title: how to download the image which will be displayed after a cache image on the web page?
body: <p>I want to download an image from a cartoon website. and my app is WinForm,not WebForm.</p>
  
  <p>So let's say that there is an image on the a.html.</p>
  
  <p>Normally, when I click the previous page and am redirected to this page, 
  there will be a image :"image is loading",let's say A.jpg, in the same block.</p>
  
  <p>After 5 seconds, the real one,let's say B.jpg, will be displayed.</p>
  
  <p>So what I got is only the caching image rather than the one,B.jpg, which I want.</p>
  
  <p>So..... how should I do it?</p>
  
  <p>Thanks in advance.</p>
  
  <p>ps:  I have posted this qustion for more than 48 hours, and only got a few of answers which don't solve my problem.
  I am wondering that why there are only 2 people posted their answers?
  Is my question not clear?
  If any, please let me know.</p>
  
  <p>Thanks</p>