"Cannot find entrypoint ... in the DLL" error 1

[mkrausnick]

I am trying to implement PGP encryption in VFP7 to generate and email encrypted reports. I am using NSDPGP, a shareware com wrapper for PGP on Windows 2000. NSDPGP2 is written in VC++ and the doc comes with usage examples in WSH, ASP, Visual Basic and Visual C++, and states it also works with Delphi and Java.
I have registered the DLL using Regsvr32, and I can view NSDPGP32 in VFP's object browser. Here is a copy/paste from the VFP7 object browser:

Method GetKeyIDFromUserID(pubkeyring As String, privkeyring As String, userid As String) As String
Member of NSDPGP2Lib (cached).PGP
Defined in interface IPGP
Obtain the KeyID of a key from its UserID

Here is the VFP code I run:

DECLARE String GetKeyIDFromUserID IN nsdpgp2.dll String PublicRingFile , String PrivateRingFile , String UserID 
cPublicPGPKeyRing  = "C:\Documents and Settings\...\PGP\pubring.pkr"
cPrivatePGPKeyRing = "C:\Documents and Settings\...\PGP\secring.skr"
cUserName          = &quot;<myusername>&quot;
? GetKeyIDFromUserID( cPublicPGPKeyRing,cPrivatePGPKeyRing,cUserName )

The error message indicates VFP can't find the GetKeyIDFromUserID in the DLL.

What am I doing wrong?


Mike Krausnick
Dublin, California

 

[craigber]

If it's COM, you don't use DECLARE DLL, but you use CREATEOBJECT to get a reference to it.

Craig Berntson
MCSD, Visual FoxPro MVP,

http://www.craigberntson.com

Author, CrysDev: A Developer's Guide to Integrating Crystal Reports"

 

[mkrausnick]

Perfect! Thanks.

For others who want to do this, the code that works is:

oPGP=CreateObject("NSDPGP2Lib.PGP")
? oPGP.GetKeyIDFromUserID( cPublicPGPKeyRing,cPrivatePGPKeyRing,cUserName )

Mike Krausnick
Dublin, California