External DLL not recognized again

[marcello62]

Hi there,

I have an application running in Delphi, consisting, among other components, of two dll's talking to each other. Now, I want to rewrite one of them in C#. Therefore, I am trying to call a Delphi DLL from C# and a C# DLL from Delphi. Thanks to a tip on this forum I got the Delphi DLL running in C#. But when I try to get the C# DLL running in Delphi it goes wrong: my Delphi code recognises the DLL but it doesn't seem able to adress the functions within it (GetProcAdress returns nil). I think I should solve this problem in C#, but I wouldn't know how. The functions are defined as public within a public class, so I guess that means they should be recognised. Does anybody know how to handle this one?

Any help will be greatly appreciated. Thanks.

 

[monkhandle]

I never needed that, but I imagine you need to consume .net methods as COM objects.

This links might be useful:

http://www.pcreview.co.uk/forums/thread-1225474.php

http://www.codeproject.com/KB/COM/COM_DOTNET_INTEROP.aspx

But I would avoid mixing .net and native if possible.

 

[marcello62]

Hi Monkhandle,

I've been doing a lot of reading and trying. Probably you're right and I should stick with Delphi
Thanks anyway