I still can't get it to work with Import. As you suggest, I have tried:

use strict;
use Win32::API;

Win32::API::Type->typedef( 'OMDTEXTZ', 'TCHAR');
Win32::API::Type->typedef( 'OMDERROR', 'ULONG');
Win32::API::Type->typedef( 'OMD32U', 'ULONG' );
Win32::API::Type->typedef( 'OMDCLIENT', 'ULONG' );

Win32::API->Import( 'omdapi',
    'OMDERROR OMDClientCreate (
            OMDTEXTZ* pUsername,
            OMDTEXTZ* pPassword,
            OMDTEXTZ* pDomain,
            OMD32U options,
            OMDCLIENT* pClient
    )'
);

my $username = 'user1';
my $password = 'pass1';
my $domain = 'domain1';
my $options = 0;
my $client;

my $return = OMDClientCreate( $username, $password, $domain, $options,
+ $client ) or die $^E;
[download]

And although the call to OMDClientCreate does not die, it also puts nothing into the $client variable.

However, if I try it using a parameter list instead:

use strict;
use Win32::API;

my $function = Win32::API->new( 'omdapi', 'OMDClientCreate', 'PPPIP', 
+'I');

my $client = pack('L', 0);

my $username = 'user1';
my $password = 'pass1;;
my $domain = 'domain1';

my $return = $function->Call( $username, $password, $domain, 0, $clien
+t );
[download]

it actually works (which I have confirmed by using Data::Dumper on the $client variable).

Am I missing something?

Thanks,

---

In reply to Re^2: Win32::API - How to call an Imported function with Win32::API::Types ? by fx
in thread Win32::API - How to call an Imported function with Win32::API::Types ? by fx

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! —

• How do I compose an effective node title?
• How do I post a question effectively?
• Markup in the Monastery

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:
	&		&
	<		&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.