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.NET Forum / Languages / Managed C++ / June 2005What is the easy way to provide c# interface to my C++ unmanaged d
Hi, if i have the unmanaged c++ source files, what is the easy way to provide c# interface to this unmanaged c++ dll, should i use managed c++ wrapper classes or use PInvoke or use the /clr compiler option ? Thanks. Using /clr will not make any difference. You will need to convert your classes into managed classes and its exposed interfaces must expose cls compliant types, but this could be easy to accomplish or not. I think that is a good migration path if you don't need backward compatibility. If you need to ensure backward compatibility it will be a better option ot make a managed wrapper arround your current code. If you only expose your component through interop it will be difficult to use for managed clients. I would prefer any of the others approach.  SignatureUn saludo Rodrigo Corral González [MVP] FAQ de microsoft.public.es.vc++ http://rcorral.mvps.org Hi Rodrigo, - Is there any automated process/tool to generate wrapper classes to my unmanaged c++ dll ? - When i use the /clr option i get link error LNK2001: unresolved external symbol "char * __cdecl strdup(char const *)" (?strdup@@$$J0YAPADPBD@Z) . how should i solved this error ? Thanks a lot. > - Is there any automated process/tool to generate wrapper classes to my > unmanaged c++ dll ? AFAIK, no there isn´t. > - When i use the /clr option i get link error LNK2001: unresolved external http://support.microsoft.com/kb/814472/en-us SignatureUn saludo Rodrigo Corral González [MVP] FAQ de microsoft.public.es.vc++ http://rcorral.mvps.org Hi Rodrigo, What do you think about the swig tool ? http://www.swig.org/ it generate c# classes and c++ wrappers using PInvoke. - should i use it ? Thanks a lot. I don´t know. I have not used SWIG. You could try it and tell us if it is a good tool or not. SignatureUn saludo Rodrigo Corral González [MVP] FAQ de microsoft.public.es.vc++ http://rcorral.mvps.org ok , i will. Thanks Rodrigo. > I don´t know. I have not used SWIG. You could try it and tell us if it is a > good tool or not. Hi Rodrigo, Is there is any differences in the capabiliies of those 3 approaches IJW, Manage C++ Wrapper classes or PInvoke, for example if i can use polymorphism in all the approaches in my C# Client ? Thanks a lot. Free MagazinesGet these publications absolutely FREE for up to 12 months. There are no hidden fees and no obligation. Simply choose a title, complete the application form and submit it. Read more ...
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