C#调用Cpp语言DLL

0x00 引言

再简单的事情，也需要有人去做。

0x01 Cpp工程

CppMath.h

#pragma once
#include <stdexcept>
 
class CppMath
{
public:
    double Add(double arg1,double arg2);
};

CppMath.cpp

#pragma once
#include "CppMath.h"
 
double CppMath::Add(double arg1,double arg2)
{
    return arg1+arg2;
}

0x02 CLR Wrapper工程

CLRWrapper.h

#pragma once
 
#include "CppMath.h"
 
using namespace System;
 
namespace CLRWrapper {
    public ref class CppMathWrapper
    {
    public:
        //ctor
        CppMathWrapper();
        //Methods
        double Add(double arg1,double arg2);
    private:
        CppMath *cppMath;
    };
}

CLRWrapper.cpp

#include "stdafx.h"
 
#include "CLRWrapper.h"
#include "CppMath.cpp"
 
CLRWrapper::CppMathWrapper::CppMathWrapper()
{
    cppMath = new CppMath();
}
 
double CLRWrapper::CppMathWrapper::Add(double arg1,double arg2)
{
    return cppMath->Add(arg1,arg2);
}

添加头文件依赖

Properties –> Configuration Properties –> C/C++ –> Additional Include Directories

0x03 C#工程

添加引用

prograss.cs

CppMathWrapper wrapper = new CppMathWrapper();
Console.WriteLine(wrapper.Add(1.4, 2.7));
Console.ReadLine();

0x04 UPDATE

2019-02-18