use Tk;
my $test1;
my $var = "55";
$mw = MainWindow->new();
$FrameOpt = $mw -> Frame;
my $exit_b = $mw->Button(-text => 'Exit', 
  -command => sub { exit })->pack; 
  
$mw->Button(-text => "Toggle Textbox", 
  -command => sub { 
     my $state = $test1 -> Entry -> configure(-state); 
     print "$state\n";
     if ($state eq "disabled") 
       { $test1 -> Entry -> configure(-state => 'normal') }
     else { $test1 -> Entry -> configure(-state => 'disabled') }
  })->pack; 

sub GuiTextEntryLabelOnLeftCreate {
    my ($frame, %x_args) = @_;  
    my $label;  
    my $text = $x_args{'-text'};
    delete $x_args{'-text'};
    
    $label = $frame 
        -> Label (
               -text => $text,
               -foreground => "black"
           )

        -> grid (
               $frame -> Entry (%x_args) ,
               -sticky => 'w' ,
               -pady   => 2 
           );

    $label;
}

$test1 = &GuiTextEntryLabelOnLeftCreate
(
   $FrameOpt ,
   -text      => "Test value"   ,
   -textvariable => \$var ,
   -width     => 6,
   -state => "disabled",
   -foreground => "gray"
);

$FrameOpt->pack;
MainLoop();

##</code><code>##

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