title: WinForms: Looking for an easy way to pop up a 'Processing..' panel
body: <p>I have a WinForms application that, at some point, will do some calculations that take a couple of seconds. During this time, I disable the controls. Additionally I want to display a popup that kind of 'blocks' the application more visibly.</p>
  
  <p>I tried placing a Panel on top of the Form in order to do so, but there I'm somehow not able to add any text to it. I.e. the Labels and ImageBoxes I put there are somehow not displayed or behind the Panel.</p>
  
  <p>Any suggestions how I could achieve this in a quick and easy way? .. I mean, without redesigning the whole Form.</p>