Thanks for the reply. I may be going the wrong way about this but using the code below doesn't update the label text, it produces another label.

#! c:\perl\bin -w

use strict;
use Tk;

my $mw=new MainWindow;
$mw->minsize(qw(250 150));
$mw->title(" Tk Test 1 ");
my $body=$mw->Frame(-background=>'cyan')->pack(side=>'bottom', -fill=>
+'x');
my $fr1=$body->Frame(-background=>'magenta')->pack(side=>'top', -fill=
+>'x');
my $txt='hi';
$fr1->Label(-textvariable=>\$txt, -background=>'yellow', -foreground=>
+'red')->pack(-fill=>'y');

sleep 5;
change('foo', $fr1, $mw);
sleep 5;
change('bar', $fr1, $mw);
MainLoop();
sub change {
    my ($txt, $fr1, $mw)=@_;
    $fr1->Label(-textvariable=>\$txt, -background=>'yellow', -foregrou
+nd=>'red')->pack(-fill=>'y');
    $mw->update;
    }
[download]

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