After playing around a little bit, I came out with a solution. Here is the final code.

use strict;
use warnings;
use Tk;
use Tk::NoteBook;
use Tk::Pane;

my (@packWidgetTopTitel) = qw/-side top -anchor w -pady 1m/;
my (@packWidgetTop) = qw/-side top -anchor w/;

my $CkAtSearchUserDatabase;
my $CkMergedWindow1;
my $CkMergedWindow2;
my $CkMergedWindow3;

my $mw = MainWindow->new();
my $book = $mw->NoteBook(-relief => 'flat')->pack(-side => 'top' , -ex
+pand => '1', -fill => "both", -ipadx => 6, -ipady => 6);    
    my $page1 = $book->add( "Sheet1", -label=>'left');
    my $page2 = $book->add( "Sheet2", -label=>'right');

    #left
    $page1->Label(-text => "OFF-LINE RESOURCES")->pack(@packWidgetTopT
+itel);
        $page1 -> Checkbutton(-text=>"My old data", -variable=>\$CkAtS
+earchUserDatabase)->pack(@packWidgetTop);
    
    #right
    my $PaneT = $page2->Scrolled('Pane',
        -scrollbars => 'oe',
    )->pack(-anchor=> 'w');
        $PaneT->Label(-text=>"ON-LINE RESOURCES")->pack(@packWidgetTop
+Titel);
        $PaneT -> Checkbutton(-text=>"YXX", -variable=>\$CkMergedWindo
+w1)->pack(@packWidgetTop);    
        $PaneT -> Checkbutton(-text=>"XYX", -variable=>\$CkMergedWindo
+w2)->pack(@packWidgetTop);    
        $PaneT -> Checkbutton(-text=>"XXY", -variable=>\$CkMergedWindo
+w3)->pack(@packWidgetTop);    
MainLoop;

[download]

Thank you for the help.

In reply to Re: Tk gemoetry scrolled frame by Takamoto
in thread Tk geometry scrolled frame by Takamoto

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