comment on

Lose the fork(), you don't need it. I don't know about Windows, but Tk doesn't survive a fork() on unix. Basically, you can't share a window hierarchy with a child process.
The gui itself won't appear until MainLoop(); is entered, unless you muck with Tk::DoOneEvent or something. (update: see another node in this thread for a better answer here )
You never pack() any of the windows.

Tk::After

This is untested, but may be a good start:

#!/usr/bin/perl
my $top2 = MainWindow->new();
my $waitbox = $top2->WaitBox(-title=>"Connecting to agent $port",
        -txt1=>"Connecting to  Agent $port.\nConnection will be establ
+ished when this box closes.\n",
        -cancelroutine=>sub {
            print "\nCancelling...\n";
            $top2->unShow;
            die}
        );
# pack the widgets

$waitbox->pack;

# encapsulate the wait box posting
# and the connect routine in a sub
# ( the waitbox is just using a "grab" and "focus",
#    if you want to roll your own, see Tk::Grab )
sub doyourstuff { 
   # post the waitbox, this doesn't block
   # the process, it just grabs all the keyboard
   # and mouse events and discards them for a while
   $waitbox->Show;
   # do your connect stuff here
   for (1..10)  {
        print STDERR "waiting $_\n";
        sleep(1);
   }
   # get rid of the waitbox and start taking mouse/kb
   # events again.
   $waitbox->unShow;
}
# schedule the doyourstuff subroutine to 
# run in 0 ms
$top2->after(0,\&doyourstuff);
MainLoop();
[download]

In reply to Re: Perl/Tk and "wait" box by kschwab
in thread Perl/Tk and "wait" box by Anonymous Monk

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