#!/usr/bin/perl
use 5.018;
use strict;
use warnings;
use Win32::API;
use Data::Dumper;

$Win32::API::DEBUG = 1;

my $method = new Win32::API::More('test.dll', 'char* cat(char* a, char* b)');
if( !defined $method ) {
    die "Can't import API [cat]: $^E\n";
}

my $return = $method->Call('my ', 'potato');

print Dumper $return; # prints 'my potato'