Each list entry in an HList widget is associated with a display item. The display item determines what visual information should be displayed for this list entry. Please see the Tk::DItem manpage for a list of all display items. When a list entry is created by the itemCreate, add or addchild widget methods, the type of its display item is determined by the -itemtype option passed to these methods. If the -itemtype is omitted, then by default the type specified by this HList widget's -itemtype option is used.

Thaks for your help. The following worked for me: Note this is only the relevant part of the code.

use Tk::ItemStyle;        # use itemstyle

# define the simple styles
my $rj = $hlist->ItemStyle("text", -justify => 'right');
my $cj = $hlist->ItemStyle("text", -justify => 'center');

# when calling itemCreate use a style
$hlist->itemCreate($job, $option++, -text => $cpu{$job}, -itemtype => 
+'text', -style => $rj);
[download]