title: WinForm enter fullscreen mode
body: <p>I have <code>WinForm</code> application and i want to enter fullscreen mode and remove all bars and the task bar.
  i done it with this:</p>
  
  <pre><code>this.WindowState = FormWindowState.Maximized;
  this.FormBorderStyle = FormBorderStyle.None;
  this.TopMost = true;
  </code></pre>
  
  <p>The top bar is really hidden but the Windows <code>TaskBar</code> is still visible.
  Any idea what can be the trouble?</p>