title: How to hide firemonkey application button from Taskbar (XE4)?
body: <p>According to this <a href="https://stackoverflow.com/questions/8701511/removing-firemonkey-from-windows-taskbar">question</a> it is possible to hide fmx taskbar icon by changing window style to <strong>WS_EX_TOOLWINDOW</strong>.
  In XE2 and XE3 this code works:</p>
  
  <pre><code>uses FMX.Platform.Win, Winapi.Windows;
  
  procedure TForm1.Button1Click(Sender: TObject);
  var h:THandle;
  begin
    h := FmxHandleToHWND(Handle);
    ShowWindow(h, SW_HIDE);
    SetWindowLong(h, GWL_EXSTYLE, GetWindowLong(h, GWL_EXSTYLE) or WS_EX_TOOLWINDOW);
    ShowWindow(h, SW_SHOW);
  end;
  </code></pre>
  
  <p>In XE4 this solution does not work (application button should become hidden but nothing happens). any body have any idea?</p>
  
  <p>Thanks.</p>