my $name = "Rajappa Iyer"; 
my $email = "rsi\@netcom.com"; 
my $os = "Linux"; 

use vars qw($top); 

$top = MainWindow->new; 
my $pb = $top->Button(-text => "Notebook", -command => \&donotebook); 
$pb->pack; 
MainLoop; 


my $f; 

sub donotebook { 
   if (not defined $f) { 
  # The current example uses a DialogBox, but you could just 
  # as easily not use one... replace the following by 
  # $n = $top->NoteBook(-ipadx => 6, -ipady => 6); 
  # Of course, then you'd have to take care of the OK and Cancel 
  # buttons yourself. :-) 
  $f = $top->DialogBox(-title => "Personal Profile", 
             -buttons => ["OK", "Cancel"]); 
  my $n = $f->add('NoteBook', -ipadx => 6, -ipady => 6); 

  my $address_p = $n->add("address", -label => "Address", -underline => 0); 
  my $pref_p = $n->add("pref", -label => "Preferences", -underline => 0); 
   
  $address_p->LabEntry(-label => "Name:             ", 
       -labelPack => [-side => "left", -anchor => "w"], 
       -width => 20, 
       -textvariable => \$name)->pack(-side => "top", -anchor => "nw"); 
  $address_p->LabEntry(-label => "Email Address:", 
       -labelPack => [-side => "left", -anchor => "w"], 
       -width => 50, 
       -textvariable => \$email)->pack(-side => "top", -anchor => "nw"); 
  $pref_p->LabEntry(-label => "Operating System:", 
       -labelPack => [-side => "left"], 
       -width => 15, 
       -textvariable => \$os)->pack(-side => "top", -anchor => "nw"); 
  $n->pack(-expand => "yes", 
      -fill => "both", 
      -padx => 5, -pady => 5, 
      -side => "top"); 
   
   } 
   my $result = $f->Show; 
   if ($result =~ /OK/) { 
  print "name = $name, email = $email, os = $os\n"; 
   } 
}