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Asked: 2026-05-20T07:47:52+00:00

I’m testing a simple DLL, I wrote using C++/CLI, in a CLR console application.

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I’m testing a simple DLL, I wrote using C++/CLI, in a CLR console application. The DLL has only one function I’m trying to use. I’m referencing the DLL and set the Resolve #using Reference in the project property page, but I cannot see the function I wrote. I’m guessing I may have missed an access modifier somewhere, but I’m not sure. Here is a breakdown of my code:

DLL Code Header:

// LogDLL.h

#pragma once
#using <mscorlib.dll>
using namespace System;


namespace LogDLL {

    public ref class LogFuncs
    {
        // TODO: Add your methods for this class here.
        LogFuncs(){;};
        ~LogFuncs(){;};
        void log_to_file ( System::String ^file, bool overwrite, System::String ^text );
    };
}

DLL Code Source:

#include "stdafx.h"
#include "LogDLL.h"
using namespace System::Globalization;

void LogDLL::LogFuncs::log_to_file ( System::String ^file, bool overwrite, System::String ^text )
{
    //Do Stuff
}

And the test code I’m using:

#include "stdafx.h"
#using <LogDLL.dll>
using namespace System;

int main(array<System::String ^> ^args)
{
    Console::WriteLine(L"Hello World");
    LogDLL::LogFuncs^ a;
    a::LogDLL::LogFuncs:: //<-- Intellisense doesn't show the function from the DLL
    return 0;
}

Again, I’m not sure what I’m missing. It’s been awhile since I’ve worked with C++/CLI so I’m pretty rusty.

UPDATE:

I went ahead and changed the class to a struct per Peter’s advice.

Modified DLL Header Code:

// LogDLL.h

#pragma once
#using <mscorlib.dll>
using namespace System;


namespace LogDLL {

    public ref struct LogFuncs
    {
        // TODO: Add your methods for this class here.
        LogFuncs(){;};
        ~LogFuncs(){;};
        void log_to_file ( System::String ^file, bool overwrite, System::String ^text );
    };
}

What I still don’t understand is why the class would still default to private even though I specify it as public. Is there some fundamental reason why this is the case? Would it be any different if I was using unmanaged C++??

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1 Answer

  1. Editorial Team

    The default access for class is private. Either add “public:” for the members you want to be public or change to a ref struct, which has default access of public.

    With respect to IntelliSense, I’m assuming you’re using Visual Studio 2005 or Visual Studio 2008; Visual Studio 2010 does not support IntelliSense for C++/CLI code (this is because the parser was replaced with EDG and they didn’t retrofit the C++/CLI parsing capabilities into it for 2010’s release).

    I doubt IntelliSense would auto-complete with the syntax you’re using anyway. You’d want “a->” instead (of course, gcnew it before running this code).

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