I have only used Tk so I'm not sure how well this applies. But I do have a Perl/Tk app that pings hosts and dumps the results into a window. It's not really interactive at that point but the user can see the progress. I know it's not Tkx but I hope this might help give you some ideas. 
# Including this to show where the widgets are created.
sub gui {
    # ...
    $tk{top} = MainWindow->new();
    $tk{nb} = $tk{top}->NoteBook()->pack( -fill=>'both', -expand=>1 );
    $tk{p2} = $tk{nb}->add( 'page2', -label => 'Status' );
    ( $tk{stat} ) = $tk{p2}->Scrolled( 'ROText', -wrap => 'none', -scr
+ollbars => 'se' );
    #...
    }

#The yviewMoveto() and update() calls update the notebook page.
sub myprint {
    my( $msg ) = @_;
    $tk{stat}->insert( 'end', $msg );
    $tk{stat}->yviewMoveto( 1 );
    $tk{stat}->update();
    }

# Just showing how myprint() gets called
sub start_pinging_button_was_clicked {
    # ...
    $tk{stat}->Busy( -recurse => 1 );
    foreach my $host ( @data ) {
        my $result  = myping($host);
        myprint( $result );
    $tk{stat}->Unbusy();
    # ...
    }

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Elda Taluta; Sarks Sark; Ark Arks

In reply to Re: Tkx not updating progressbar as expected by Argel
in thread Tkx not updating progressbar as expected by jellisii2

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