title: Why SendToBack is not working with Delphi XE4
body: <p>I'm using Delphi XE4 and trying to create 2nd form and set it as a background while the first form is transparent (AlphaBlend = true; AlphaBlendValue = 220)</p>
  
  <pre><code>    uses Unit2;
  
      procedure TForm1.Button1Click(Sender: TObject);
      begin
        Form2.Show;
        Form2.SendToBack;
      end;
  </code></pre>
  
  <p>The codes above are working with Delphi 7, but not with Delphi XE4 (Form2 still over on the Form1). Can anyone tell me why the codes are not working with XE4? And how to make it working?</p>
  
  <p>Thanks in advance.</p>