title: Problem with SendMessage (Delphi)
body: <p>I send a Message to an external program :</p>
  
  <pre><code>SendMessage(Handle, WM_CHAR, Ord('A'), 0);
  </code></pre>
  
  <p>But i don't know how can i receive this message in another program ? (with WndProc or something like that) may somebody explain that for me ?</p>
  
  <p>Thank you</p>