Win32-API-0.55 problem

ActivePerl-5.8.8.824 containing the Win32-API-0.55,
This module can not return the function reference parameter.

It is no problem to install the
http://ppm.activestate.com/PPMPackages/zips/8xx-builds-only/ Windows/Win32-API-0.53.zip
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Re: Win32-API-0.55 problem

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*

**2008/10/22 Sean Lin
*
>
> *ActivePerl-5.8.8.824 containing the Win32-API-0.55,
> This module can not return the function reference parameter.
>
> It is no problem to install the
>
> http://ppm.activestate.com/PPMPackages/zips/8xx-builds-only/ Windows/Win32-API-0.53.zip
> _______________________________________________
> ActivePerl mailing list
> ActivePerl@listserv.ActiveState.com
> To unsubscribe: http://listserv.ActiveState.com/mailman/mysubs
> *

*
Hi Sean,

Please provide a *small* sample of the code that is failing for you, and let
us know the dll that youre trying to interface with.

Posting the same sparsely detailed e-mail twice is not going to get you a
reply.

Alternatively you could try adding:-

use ESP;

print "Do something to return the function reference paramter";

Or you could try using pack and unpack to get the data if the dll documents
it as using a struct.

Cheers,

Just in
*

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Re: Win32-API-0.55 problem

2008/10/22 Justin Allegakoen :
>
> Please provide a *small* sample of the code that is failing for you, and let
> us know the dll that youre trying to interface with.


This is my *small* sample...


DLL function
==============================
API_TEST_API int __stdcall sum_integers_ref(int a, int b, int *c) {
*c = a + b;
return 1;
}


Perl script
==============================
use Win32::API;
$function = Win32::API->new('API_test', 'int sum_integers_ref(int a,
int b, int* c)');
$c = 0;
$function->Call(3, 2, $c);
print "c = $c";




Win32-API-0.53 result
==============================
c = 5



Win32-API-0.55 ..... 0.57 result
==============================
c = ?



Complete DLL source code
http://code.google.com/p/libwin32/source/browse/tags/Win32-A PI/?r=354#Win32-API/0.44/API_test_dll%3Fstate%3Dclosed
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RE: Win32-API-0.55 problem

Sean Lin <> wrote:
> 2008/10/22 Justin Allegakoen :
>>
>> Please provide a *small* sample of the code that is failing for you,
>> and let us know the dll that youre trying to interface with.
>
>
> This is my *small* sample...
>
>
> DLL function
> ==============================
> API_TEST_API int __stdcall sum_integers_ref(int a, int b, int *c) {
> *c = a + b;
> return 1;
> }
>
>
> Perl script
> ==============================
> use Win32::API;
> $function = Win32::API->new('API_test', 'int sum_integers_ref(int a,
> int b, int* c)'); $c = 0; $function->Call(3, 2, $c); print "c = $c";
>
>
>
>
> Win32-API-0.53 result
> ==============================
> c = 5
>
>
>
> Win32-API-0.55 ..... 0.57 result
> ==============================
> c = ?
>
>
>
> Complete DLL source code
>
http://code.google.com/p/libwin32/source/browse/tags/Win32-A PI/?r=354#Wi
n32-API/0.44/API_test_dll%3Fstate%3Dclosed
>

It may not be your problem, but I notice that your file API_test.h
contains no reference to the function you are trying to call. Does it
work for other functions in that dll?

HTH

--
Brian Raven

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Re: Win32-API-0.55 problem

Sean Lin wrote:
> 2008/10/22 Justin Allegakoen :
>> Please provide a *small* sample of the code that is failing for you, and let
>> us know the dll that youre trying to interface with.
>
>
> This is my *small* sample...

I'm not sure what the problem is, but I would start by diffing 0.53 or 0.54
source and .pm against 0.54 or 0.55 (which ever is the first failing against
the last good one) to see what changed and caused the problem. It will probably
be obvious if there aren't a lot of changes to pore over.
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