Hi, I am looking for code examples (or snippets) of Perl/TK Hlists or tables that perform periodic auto-refreshing of table rows (e.g., perhaps using the $widget->repeat/entryconfigure functions?)

I'm interested in displaying a table that auto-updates every N seconds. For example, here is a trivial TK/HList that produces a STATIC display of the current set of running processes. I'd like to explore versions of this code where the Hlist rows autoupdate every N seconds (e.g., row attributes update, rows disappear, rows are added). One could do this by cycling through MainWindow->new / MainWindow->destroy / MainWindow->new, but that's very clunky and causes table flashing. 

use Tk;
use Tk::HList; 
use Win32::ToolHelp;
my @plist; 
my $col = 0;

&getprocHash(); 

my $mw = MainWindow->new;
$mw->resizable(1,1);
$mw->title("static process list");
$mw->geometry("400x250+80+100");
my $hlist = $mw->HList(-columns=>5, -header=>1, -background=>"white",
                 -command=>, -browsecmd=>,-selectmode=> 
                'single')->pack(-fill=>'both', -expand=>'yes'); 
foreach my $label (qw/PID Threads AID Priority Name/) {
   $hlist->header('create',$col++,-itemtype=>'text',-text=>$label) ; 
}
foreach my $p (@plist) {   
  my $e = $hlist->addchild("");  
  $col = 0;
  foreach $i (1,4,5,6,8) {
    $hlist->itemCreate($e,$col++, -itemtype=>'text',-text=>"$$p[$i]");
  }
} 
MainLoop;
exit (0);   

sub getprocHash {
  @plist = Win32::ToolHelp::GetProcesses();
}

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In reply to Auto-refreshing Perl TK HLists/Tables by GriffinP

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