This code could be adapted to a stateless protocol like HTTP for periodic server queries, I think. 
#!/usr/bin/perl -w
use strict;
use Tk;

#set up our window and some interactive feature
my $mw = Tk::MainWindow->new();
my $button = $mw->Button( -text => 'Pop', -command => sub {print "pop!
+\n";} )->pack();

#set up our periodic task.
#this executes faithfully every x milliseconds
$mw->repeat(5000, \&waiting );

MainLoop;

sub waiting {
    print "waiting...\n";
}

[download]
5000 is the milliseconds amount (so it's a very big number for only 5 seconds, but you can also give number as 5 * 1000 to remind yourself and ease figuring out longer intervals. Give this small script a try, as long as you don't mind locking up the client while the updates are happening you don't have to resort to process forking like the Tk chatterbox does.

In reply to (ichimunki) Re: Querying a Server Periodically by ichimunki
in thread Querying a Server Periodically by dooberwah

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