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POPassing Object as parameter in c /CLI Wrapper Function to be exported to native Win32 dll
 

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  1. POPassing Object as parameter in c /CLI Wrapper Function to be exported to native Win32 dll
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    <p>I've been working recently in COM interop thing.Read some Good books about it C++/CLI in Action By Nishant Shivakumar. I also went through this link by <a href="https://sites.google.com/site/srinivasnzd/csincppviacpp-cli" rel="nofollow">Srinivas</a> wherein he has explained beautifully how to Consume C# libraryin native C++ using C++/CLI.I downloaded the code present at the bottom of the page..Read it..And loved it.My application is loosely based on it. I have a question though in that example(which you can download it there). In C# Library "Worker.cs",If I have a method in the Worker class with a signature like this::</p> <pre><code>public void GetStudent(ManagedStudent student,int ){....} </code></pre> <p>FYI:: I need the object parameter because I would be accessing a method from that class in the Worker Class.</p> <p>In C++/CLI wrapper project, NativeInterface.h, I wanted to export a method which gets this managed object as a parameter unlike the example. </p> <pre><code>__declspec dllexport void GetStudent(ManagedStudent^ obj) </code></pre> <p><strong>What is the equivalent of an object in C++/CLI?</strong></p> <p>And later I want to access this method by importing this method by passing an object in my native Win32 Application/DLL. I am including the "NativeInterface.h" file in my native dll/App . But an error comes while building the dll/App..<strong>managed targeted code requires \clr option</strong>.</p> <p>FYI:: 1. My WIN32 dll/app is being compiled with no \clr support and my wrapper with \clr support 2. I believe the error comes because of the handle used as a parameter? I want to access UnmanagedStudent(Object obj) in native app/dll; Is that possible</p>
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    1. USPratik Pattanayak
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    1. COYou could define your ManagedStudent as a COM Object so every language in the world supporting COM can access it quite naturally.
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      1. USSimon Mourier
 

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