my $th_inc = threads->new( \&kind );


my $toplevel = $config{MainWindow}->Toplevel();
share($toplevel);

sub kind {
    $toplevel->configure(
        -text => "Hier ist der Titel"
    );
    return 0;
}

MainLoop();

thread failed to start: Can't call method "configure" on an undefined value at t
est.pl line 877.
Tk::Error: Invalid value for shared scalar at C:/Perl/site/lib/Tk/After.pm line
87.
 [once,[{},after#49,idle,once,[ConfigChanged,{},{}]]]
 ("after" script)