How to get the active Widget?

From: Mathieu de Naurois (denauroi@polhp1.in2p3.fr)
Date: Mon Sep 07 1998 - 14:42:42 MEST 

Hello ROOTers

Is it possible to get a pointer to the Widget that has the focus in a
dialog window? I wanted to implement a mechanism to forbid a TGTextEntry
to loose the focus if the entry is not valid. I catch the message
HandleFocusChange and return false if the entry is not valid, but the
window manager still changes the focus.

Thank you.

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Mathieu de Naurois
LPNHE Ecole Polytechnique
denauroi@polhp1.in2p3.fr

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