#!/usr/bin/perl -w

use strict;
use threads;

# Create main window
sub gui {
    require Tk;
    my $main = MainWindow->new;

# Add a Label and a Button to main window
    $main->Label(-text => 'Hello, world!')->pack;
    $main->Button(-text => 'Quit',
        -command => [ $main => 'destroy']
    )->pack;

# Spin the message loop
    Tk->MainLoop;
}

my $server_thread = threads->create("gui");

while (1) {
    sleep(1);
    print "cav\n";
}
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PS - Please read the About the PerlMonks FAQ (the section on formatting your post).

MJD says "you can't just make shit up and expect the computer to know what you mean, retardo!"

I run a Win32 PPM repository for perl 5.6.x and 5.8.x -- I take requests (README).

** The third rule of perl club is a statement of fact: pod is sexy.

Thanks for the help... actualy I continue to have problems... what I really wanted to do was display a loading screen while my program did its various
operations, then finally display the main gui. My plan was showing an initial gui, loading the stuff, destroying
the gui and loading the final gui, but I continue to get
spool errors... check it out

use strict;
use Thread::Use;
use threads;
use threads::shared;
my $u; share ($u);

my $load_gui = threads->create("loading_screen");

my $counter;

#Simulate program loading
while ($counter < 3) {
sleep($counter);
$counter++;
}
$u = 1;#destroy loading screen
$load_gui->join;

#Load the final gui
my $load_gui2 = threads->create("loadGui");

#keep program fom ending
while (1) {
sleep(1);
print "cav\n";
}


##GUIS###########################

sub loading_screen {
useit Tk;
my $main = MainWindow->new;
$main->repeat(100 => sub {if ($u){$main->destroy}});

# Add a Label and a Button to main window
$main->Label(-text => 'Loading!')->pack;
Tk->MainLoop;
}

sub loadGui {
useit Tk;
my $main = MainWindow->new;

# Add a Label and a Button to main window
$main->Label(-text => 'Main Gui')->pack;

# Spin the message loop
Tk->MainLoop;
}

You don't need threads to throw up a splash screen. See Tk::Splashscreen - display a Splashscreen during program initialization.

MJD says "you can't just make shit up and expect the computer to know what you mean, retardo!"

I run a Win32 PPM repository for perl 5.6.x and 5.8.x -- I take requests (README).

** The third rule of perl club is a statement of fact: pod is sexy.

This is one point where the Tcl advocates seem to have a point - Tk in Perl is not thread safe, in Tcl it is supposed to be thread safe.

You might want to try fork() - in 5.8 that is supposed to have matured quite a lot, it may do what you need, I haven't had a chance to try it.

jdtoronto