You can create your own popup with a toplevel, then you can put anything you want into it. 
#!/usr/bin/perl
use Tk;
use strict;

my ($mw, $dir);

$mw = MainWindow->new();
$mw     -> Button ( -text => "OK",
                    -command => \&create_new)
        -> pack ( -side => 'left');
$mw     -> Button ( -text => "Cancel",
                    -command => sub {exit;})
        -> pack ( -side => 'right');
MainLoop;

sub create_new
{


        my $mt = $mw -> Toplevel (-title => "first");
        my $rb1 = $mt -> Radiobutton( -text => "one",
                                    -value => "one",
                                    -variable => \$dir)
                         -> pack(-side => 'top',
                                 -fill => 'x');
        my $rb2 = $mt -> Radiobutton( -text => "two",
                                       -value => "two",
                                       -variable => \$dir)
                         -> pack(-side => 'top',
                                 -fill => 'x');

        $mt     -> Button ( -text => "OK",
                    -command => [\&create_new2])
                -> pack ( -side => 'left');
        $mt     -> Button ( -text => "Cancel",
                    -command => sub {$mt -> destroy;})
                -> pack ( -side => 'right');
}

sub create_new2
{

        my $mf = $mw -> Toplevel(-title => "second");

        $mf     -> Button ( -text => $dir)
                -> pack ( -side => 'left');
        $mf     -> Button ( -text => "Cancel",
                    -command => sub {$mf -> destroy;})
                -> pack ( -side => 'right');
}

[download]

In reply to Re: Perl Tk Radiobutton in a popup menu by Anonymous Monk
in thread Perl Tk Radiobutton in a popup menu by Anonymous Monk

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.