The Win32::API::Struct v0.41 module documentation states the following:

Also note that typedef automatically defines an 'LPNAME' type, which holds a pointer to your structure.

Using the example in that documentation, I have created a POINT structure. This should mean that I have also automatically created an LPPOINT structure.

If this is the case, why does the following not work: 

#!c:\perl\bin\perl -w

use strict;
use Data::Dumper;
use Win32::API;

Win32::API::Struct->typedef( 'POINT', 'LONG', 'x', 'LONG', 'y' );

my $point = Win32::API::Struct->new( 'LPPOINT' ) or die $!;

print Dumper( $point );

[download]

with the error message being: 

Unknown Win32::API::Struct 'LPPOINT' at C:\point.pl line 9
Died at C:\point.pl line 9, <DATA> line 164.

[download]

Is the documentation wrong or am I not reading it correctly?

Thanks,

fx, Infinity is Colourless

In reply to Win32::API::Struct - Automatic pointer creation not working ? 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! —
  • 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.