It sounds like what you want is an app with two listboxes where an event in listbox1 activates something in listbox2. If this is correct, test the following code. Pressing 'insert' in the left box will add an item to the box on the right. Pressing 'delete' in the left box will remove the last item from the box on the right. Granted its a quick hack, but it will get you started.

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

my ($mw, $lb1, $lb2);
my $count = 1;

$mw = MainWindow->new();

$lb1 = $mw->Listbox()->pack(-side => 'left');
$lb1->insert('end', 'insert','delete');
$lb1->bind('<<ListboxSelect>>' => \&sub1);
$lb2 = $mw->Listbox()->pack(-side => 'left');

MainLoop;
exit;

sub sub1 {
   my $sel = $lb1->curselection;
   if( $sel->[0] == 0 ) {
      &sub2;
   } else {
       &sub3;
   }
}

sub sub2 {
    $lb2->insert('end', "inserting $count");
    $count++;
}

sub sub3 {
    $lb2->delete('end');
    $count--;
}
[download]

hope this helps,

davidj

---

---

• Are you posting in the right place? Check out Where do I post X? to know for sure.
• Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:

  <code> <a> <b> <big> <blockquote> <br /> <dd> <dl> <dt> <em> <font> <h1> <h2> <h3> <h4> <h5> <h6> <hr /> <i> <li> <nbsp> <ol> <p> <small> <strike> <strong> <sub> <sup> <table> <td> <th> <tr> <tt> <u> <ul>

• Snippets of code should be wrapped in <code> tags not <pre> tags. In fact, <pre> tags should generally be avoided. If they must be used, extreme care should be taken to ensure that their contents do not have long lines (<70 chars), in order to prevent horizontal scrolling (and possible janitor intervention).
• Want more info? How to link or How to display code and escape characters are good places to start.