Well I got it to work. It turned out that my pack and unpack were wrong.
Thanks to the Pack/Unpack Tutorial (aka How the System Stores Data) for the ideas.

#!perl
use strict;
use Win32::API::Prototype;
ApiLink( 'eq_handy.dll', 'BOOL bgfnTextDecrypt( LPTSTR  lpString, LPTS
+TR, lpBuffer )' ) || die ($!);
my $passphrase="encrypt-pass";

my $lpString = pack( "A*", $passphrase,0);
   
print "Hi there\n";
my $nBufferLength = 256;
my $lpBuffer = NewString( $nBufferLength );
if (bgfnTextDecrypt($lpString,$lpBuffer, $nBufferLength)) {
        print "It worked!\n"; }
   

my $pass = unpack( "A*", $lpBuffer );
print "The pass is:",$pass,"\n";

[download]
Back to my box.

Neil

In reply to Re^2: Win32::API and ::Prototype assistance - Victory by neilh
in thread Win32::API and ::Prototype assistance by neilh

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