[ROOT] Update the title in TGGroupFrame

From: Reiner Rohlfs (Reiner.Rohlfs@obs.unige.ch)
Date: Thu Jan 04 2001 - 11:22:49 MET 

Hi Root Team

I want to update the title in a TGGroupFrame. I'm able to set a new title
(fText) in a class derived from TGGroupFrame. But the old frame and the old
title are not removed from the screen and the new title are printed above the
old one.
Is there a function to update the screen correctly, to remove the old frame and
the old title?
I noticed, it works fine when I resize the whole window with the mouse.

Thanks Reiner.

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