use warnings;
use strict;
use Win32::GUI();
use Data::Dumper;
use Encode qw/decode/;

my $str = "ç"; # This is "turkish" charset "ç"
$str = decode("utf-8", $str); # decoding "ç" char with utf-8
print Dumper($str); # And "ç" char dumped, output : \x{e7}

my $win = new Win32::GUI::Window(
-name => "win",
-text => "Unicode Test",
-width => 300,
-height => 200
);

$win->AddLabel(
-name => "labeun",
-text => "\x{e7}", # <--- Write here hex code char "\x{e7}"
                   # and look at the results. Displaying label text "ç". No problem.
-width => 50,
-height => 20
);
$win->Center();
$win->Show();
Win32::GUI::Dialog();
1;