I've written up this example:

#!/usr/bin/perl
use strict;
use warnings;
use Tk;

my $mw = MainWindow->new;
$mw->geometry("300x300");

my $var =1;
my ($major, $other);

my @options = ('one', 'two', 'three', 'four', 'five');

my $topics1=$mw->Radiobutton(-text =>'Selection 1', -value => '0',
        -variable => \$major,  -command => sub {&do_smth('1')})->pack(
+);

my $topics2=$mw->Radiobutton(-text =>'Selection 2', -value => '1',
        -variable => \$major, -command => sub {&do_smth('2')})->pack()
+;

my $topics3=$mw->Radiobutton(-text =>'Selection 3', -value => '3',
        -variable => \$major, -command => sub {&do_smth('3')})->pack()
+;

if ($var eq 'more'){

        my $options=$mw->Optionmenu( -options => [@options], -variable
+ => \$other,
                -command => [sub {&do_more($major, $other);}])->pack()
+;

}

MainLoop;


sub do_smth{
        my $selection = shift;
        $var='more' unless ($selection == 2);
}

sub do_more{
        my ($major, $other) = @_;
        print "do this: $other while Selection was $major\n";

}

[download]

How do I make the extra Optionmenu to appear when choice 2 is called?

In reply to Re^3: Dynamically add Optionmenus based on variable perl tk by pashanoid
in thread Dynamically add Optionmenus based on variable perl tk by pashanoid

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