title: How to make a Drawn Line on a Form Invisible in Delphi 7
body: <p>I am trying to make an analog clock, wherein I would like to make my 'seconds' Line Invisible when the Seconds Changes. I have tried to set the Pen mode to <code>pmNotCopy</code> but it only gives Inverse of Pen Color. What Property must be set in this <code>Form1.Canvas.Pen.Mode:=&lt;Blank&gt;</code> so that My Line Disappears?</p>
  
  <p>Any other Ideas are also appreciated.</p>
  
  <p>Thanks</p>