it seems just calling waitVisibility twice instantiates a simple PTk window

#!/usr/bin/perl

use strict;
use warnings;
use Tk;

my $mw=MainWindow->new;

$mw->waitVisibility;
$mw->waitVisibility;

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In reply to Re^8: Basic questions of Tk programming by Don Coyote
in thread Basic questions of Tk programming by jmClifford

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