Tk window to the front of all application windows
How to bring a Tk window to the top
Maximizing window in Perl/TK
Center a Tk window on the screen 
$mw->overrideredirect(0); ## 1
#~ 2 3 4 2 3 4 
$mw->withdraw;
$mw->deiconify;
$mw->geometry('+0+0');
$mw->raise;
$mw->state('normal');
$mw->state('zoomed');
MainLoop;

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In reply to Re^2: Bring window to front in Tk GUI in Windows (overrideredirect withdraw deiconify geometry raise state zoomed) by Anonymous Monk
in thread Bring window to front in Tk GUI in Windows by kgnickl

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