use Win32::Console;

my $wc = Win32::Console->new(STD_INPUT_HANDLE);
$wc->InputCP(65001);
say 'Paste stuff now.';

Char: while (1)
{
    my $char = $wc->InputChar(1);
    if (!defined $char)
    {
        say 'Read (undef)';
        next Char;
    }

    # "pretty" character, for display
    my $pch = $char =~ /[[:^print:]]/?  '?' : $char;

    # Deconstruct the character
    my @c = unpack 'C*', $char;
    say "Read: '$pch' = ", join ' - ', map sprintf('%02X',$_), @c;

    last if $char eq "\n";
}