No, I can't :) This is actually a Windows standard. It goes back to 3.1 where the control box looked like a square with a dash in it. I either read about it in some tip column or discovered it accidently. Maybe I even figured it out myself becase the box looked like a dash. I really have no idea.
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>Thanks, Josh! Just for grins, could you tell me where this is documented, or at least how you found this? Thanks again.