title: When focused, if set TBitBtn.Enabled to False it does not update it's visual state (with VCL Style on)
body: <p>The problem is that when I try to set the TBitBtn.Enabled to False (when it is focused, like in the onClick event, and with VCL Styles enabled), it does not change the visual state, looking like it is stil enabled. </p>
  
  <pre><code>procedure TForm1.BitBtn1Click(Sender: TObject);
  begin
     BitBtn1.Enabled := False;
  end;
  </code></pre>
  
  <p><a href="https://i.stack.imgur.com/Vjuq9.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Vjuq9.png" alt=""></a></p>
  
  <p>In the image, I just clicked in the bitbtn1</p>