Win32::Console gives you the interface to ->OutputCP:

#!perl
use strict;
use warnings;
use charnames ':full';
use Win32::Console;

my $c = Win32::Console->new(STD_OUTPUT_HANDLE);
$c->OutputCP(65001); # we write UTF-8
binmode STDOUT, ':encoding(UTF-8)';

print "\N{INFINITY}\n";

[download]

In my tests, the output code page persisted after the program run, so you might (or might not) want to save/restore the codepage:

my $oldCP = $c->OutputCP();
$c->OutputCP(65001); # we write UTF-8
END{
    if( $c ) {
        $c->OutputCP($oldCP); # we write UTF-8
    }
}
...

[download]

In reply to Re^3: Encoding problem with function in C library by Corion
in thread Encoding problem with function in C library by syphilis

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.