Hi,
There is no problem to use your code with C#. What you need to do is to
create a wrapper. First create a dll (a confortable way to do that) with the
functions you need to use from C# ( in your case, rename tmain to for
example TLS_whatever) and then user platform invocation to access from C#.
An example that uses two functions implemented in two different C++ dlls:
Functions in C/C++
DWORD dwStart = GetTickCount();
LONG SCardEstablishContext(
DWORD dwScope,
LPCVOID pvReserved1,
LPCVOID pvReserved2,
LPSCARDCONTEXT phContext
);
Note that the types used in C/C++ should be converted to others equivalents
in C# (if it is a pointer, use IntPtr)
Find more information searching pInvoke or Platform Invocation in MSDN
using System;
using System.Runtime.InteropServices;
namespace YourNameSpace
{
/// <summary>
/// Doc.
/// </summary>
public class mywrapper
{
// this is optional: it disables heap walks security checking and
improves performance
[System.Security.SuppressUnmanagedCodeSecurityAttribute()]
[DllImport("Kernel32.dll")]
public unsafe static extern int GetTickCount();
//note that here we are not suppressing security checking
[DllImport("winscard.dll")]
public unsafe static extern Int32 SCardEstablishContext(
UInt32 Scope, IntPtr pReserved1, IntPtr pReserserved2, UInt32 *phContext);
}
class Class1
{
/// <summary>
/// </summary>
[STAThread]
static void Main(string[] args)
{
UInt32 hContext = 0;
int Result = 0;
UInt32 SCARD_SCOPE_USER = 0;
// if you are not using pointers (as we were not
using C/C++)
mywrapper.GetTickCount();
unsafe // if you use pointers to behave like in
C/C++ note the parameter &hContext
{
Result = mywrapper.SCardEstablishContext(
SCARD_SCOPE_USER, a , a, &hContext);
if ( Result != 0 )
Console.WriteLine("Error stablish
context");
}
}
}
}
Daniel Díaz Sánchez
-----Mensaje original-----
De: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
En nombre de Hashim Saleem
Enviado el: martes, 24 de enero de 2006 13:45
Para: openssl-users@openssl.org
Asunto: Re: Convert C++ to C# OpenSSL app
One other option is to write a managed wrapper in visual C++ .net using the
IJW (It just works) technology. This way, the resulting wrapper (.net
assembly) could be called from any .net supported language e.g. C#, VB.net,
J# etc.
I can provide an example of this if it is required.
Regards,
Hashim Saleem
----- Original Message -----
From: "Thomas J. Hruska" <[EMAIL PROTECTED]>
To: <openssl-users@openssl.org>
Sent: Sunday, January 22, 2006 8:34 AM
Subject: Re: Convert C++ to C# OpenSSL app
> OpenSSLGRT wrote:
>> I just got Mr. Sanchez OpenSSL port to PDA
>> (http://karajan.it.uc3m.es/~pervasive/wce_lite_compat/) - and it works
>> great! I have a simple SSL Client in C++. Now I want to convert that to
>> C#.
>> I assume(???) that I would use the two DLLs but libeay32.dll and
>> ssleay32.dll that I now have on the PDA. I know how to use simple dlls
>> from
>> C++ in C# but I am having trouble figuring out how to convert this more
>> complicated program. Any help would be greatly!!! Appretiated
>>
>> A simple app (which I got a lot from a great source on the web!) in C++
>> posts vars to a server and works fine - now to get it into C# (I can get
>> the
>> C++ generic code translated OK it is just how do I get at the OpenSSL
>> stuff
>> like for example: SSL_load_error_strings();
>
> Look at how PayPal interacts with OpenSSL. They build an intermediate
> unmanaged DLL with C++ that does the actual communication with OpenSSL and
> then call the intermediate DLL from C#. Source code for this is available
> in the PayPal SDK.
>
> --
> Thomas Hruska
> Shining Light Productions
>
> Home of BMP2AVI, Nuclear Vision, ProtoNova, and Win32 OpenSSL.
> http://www.slproweb.com/
>
> Ask me about discounts on any Shining Light Productions product!
>
> ______________________________________________________________________
> OpenSSL Project http://www.openssl.org
> User Support Mailing List openssl-users@openssl.org
> Automated List Manager [EMAIL PROTECTED]
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