Dear Monks, I want to create a GUI allowing the user to apply several different processing steps to a string. For each step, there are some settings to adjust (in this simple example the option to export the data after the processing step). My general proble is caused by the fact, that the widgets are created in a loop. I don't know how to do specific callbacks to other widgets also created in this loop. You may understand my problem better by running this code: 
#! /usr/bin/perl -w
use Tk;
$mw=MainWindow->new();
@type_of_processing=("type1","type2","type1","type1","type2");
$step_no=0;
foreach(@type_of_processing)
    {
    $step_no++;
    if($_ eq "type1")
        {
        type1_settings();
        }
    elsif($_ eq "type2")
        {
        type2_settings();
        }
    }
MainLoop;
sub type1_settings
    {
    $label{$step_no}=$mw->Label(-text=>"This is processing step no. $s
+tep_no. (type1)")->pack;
    $entry{$step_no}=$mw->Entry(-width=>20,-state=>'disabled')->pack;
    $checkbutton{$step_no}=$mw->Checkbutton
        (
        -text=>"export results to: ",
        -variable=>\$status,
        -command=>sub
            {
            if($status==1)
                {
                $entry{$step_no}->configure(-state=>'normal')
                }
            else
                {
                $entry{$step_no}->configure(-state=>'disabled')
                }
            }
        )->pack(-before=>$entry{$step_no});
    }
sub type2_settings
    {
    $label{$step_no}=$mw->Label(-text=>"This is processing step no. $s
+tep_no. (type2)")->pack;
    $entry{$step_no}=$mw->Entry(-width=>20,-state=>'disabled')->pack;
    $checkbutton{$step_no}=$mw->Checkbutton
        (
        -text=>"export results to: ",
        -variable=>\$status,
        -command=>sub
            {
            if($status==1)
                {
                $entry{$step_no}->configure(-state=>'normal')
                }
            else
                {
                $entry{$step_no}->configure(-state=>'disabled')
                }
            }
        )->pack(-before=>$entry{$step_no});
    }

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In reply to Perl::Tk Problems with creating widgets using a loop by Microcebus

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