You probably can use overriderediect. 
#!/usr/bin/perl
use warnings;
use strict;
use Tk;

my $mw = tkinit;
$mw->geometry("200x300+200+200");

$mw->overrideredirect(1);   # set the override-redirect flag 

$mw->Button(
   -text       => 'Quit',
   -command    => sub { Tk::exit(0) },
)->pack(
   -side       => 'bottom',
);

MainLoop;

[download]
If that dosn't work, or you want to keep the window manager controls, you can set a timer, which will refresh your screen every second, and "raise" it to the top. 
#!/usr/bin/perl
use Tk;
use strict;
use warnings;

my $top = new MainWindow;

keep_on_top($top);

MainLoop;

sub keep_on_top {
    my $w = shift;

    my $toprepeater = $w->repeat(100,
      sub{ $w->raise  });

}

[download]
I'm not really a human, but I play one on earth. flash japh

In reply to Re: How to be always on TOP by zentara
in thread How to be always on TOP by gerry

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