title: TBitBtn Font Style on MouseEnter Event
body: <p>I have an application having one TBitBtn as "BitBtn1". Initially BitBtn1 Font Style is "[]" i.e. Normal. If my Code is as follows :</p>
  
  <pre><code>procedure TForm00001.BitBtn00003MouseEnter(Sender: TObject);
      begin
        BitBtn1.Font.Style :=fsBold;
      end;
  </code></pre>
  
  <p>it gives an error. Please help me so that I can change TBitBtn Font Style as Bold on "MouseEnter Event".</p>