#!/usr/bin/perl -d
use Tk;

$fmain = MainWindow -> new;
$fmain -> title("Frame delete test");
@mycolor = qw(red green blue violet yellow black);

for ( 0 .. 5 ) {
 my $frame = $fmain->Frame(-borderwidth => 10, -relief => 'groove', -background => $mycolor[$_])
   ->pack(-side => 'top');

 $lbl = $frame -> Label( -text => "Enter username: " )
   ->pack;

 $ent = $frame -> Entry( -text => $username[$_] )
   ->pack;

 $btn = $frame -> Button(-text => "Delete frame # " . $_, -command =>
   sub {
        $val = $ent->cget('-text');
        rmv_frm($frame,$val); } )
   ->pack;
 }

 $ex = $fmain -> Button(-text => "Exit",-command => sub { exit } )
   -> pack;

MainLoop;

sub rmv_frm {

shift -> destroy;
#$val_ref = $ent->cget('-text');
#$val = $$val_ref;
$val = shift;
print "You entered: $val\n";

# if no frames exist, need to "withdraw" fmain.
$fmain -> withdraw if $fmain -> children == 0;