Hi,

I?m trying to call the CryptoAPI-function CryptRetrieveObjectByUrl from my
C# project. At the moment  I?m using a C++ - dll in order to call the
function with the following parameters:

CryptRetrieveObjectByUrl( My_LDAP , CONTEXT_OID_CRL , dwFlags, 30000 ,
(LPVOID *)&pMyCRL, NULL , NULL , NULL , NULL )

but I would like to remove the dll and make the call from C#. But I?m unsure
how to marshal some of the parameters, more precisely the second and fifth
parameters.

The fifth parameter (pMyCRL) is defined as a pointer to a pointer, which in
the end is supposed to point to a PCRL_CONTEXT-struct.

The second parameter is defined in WinCrypt.h like this:  #define
CONTEXT_OID_CRL ((LPCSTR)2) I know how to marshal to a LPCSTR , but what?s
the value of it??

Any help appreciated... Thanks in advance

Jon G