Without seeing your code, to get the rows, try

sub getlist {
     my $tree = shift;
     my @list = $tree->infoChildren(shift);
     if (@list) {
         foreach my $entry (@list) {
             push(@ListOfAllEntries, $entry);
             getlist($tree, $entry);
         }
     }
 } 



#  Is there an easy way to find the # of columns and rows of a HList?

#  For columns: $hlist->cget(-columns)
#  For rows, I could not found an easy way. You can use
#  $hlist->info("children") to traverse the whole tree and get the row
#  number.
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