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Home: Perl Programming Help: Win32 Programming Help:
Perl error when calling native dll

exvance
New User

Aug 30, 2010, 1:16 PM

Post #1 of 1 (9020 views)

Perl error when calling native dll	Can't Post

I'm new to perl. I'm sure I'm just doing something silly. I hope someone will be kind enough to point out what I'm doing wrong.

Here's my perl code:

Code

#!/usr/bin/perl -w 
use strict; 
use Win32::API; 
 
sub Init 
{ 
    my $reprise = Win32::API->new('rlm', 'rlm_init', 'P', 'N'); 
    my $handle = $reprise->Call('.'); 
} 
 
Init(); 
 
1;

Here is the method I'm trying to call:

Code

extern struct rlm_handle *	rlm_init(const char *, const char *,  
								const char *);

I've tried passing one parameter, two, all three...same output.
When it runs the "Call" line I get an event log entry like this:

Code

Faulting application name: perl.exe, version: 5.10.0.1004, time stamp: 0x48bef0d8 
Faulting module name: perl510.dll, version: 5.10.0.1004, time stamp: 0x48bef0d7 
Exception code: 0xc0000005 
Fault offset: 0x00047daa 
Faulting process id: 0xe80 
Faulting application start time: 0x01cb487c07ea0010

If I try to debug using Visual Studio it gives me this:

Code

Unhandled exception at 0x28047daa in perl.exe: 0xC0000005: Access violation writing location 0x00000004.

The publisher of the dll I'm calling has never used it from perl and is unable to provide assistance. What am I doing wrong?

Thanks,

Eric

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