为C ++结构构造C#结构 [英] Construct C# Struct for C++ struct

问题描述

我需要从C#的DLL中调用C ++函数.我尝试了与c#不同的选项，但是值无法正确传递/接收.

I need to call C++ function in a DLL from C#.I have tried different options from c#,but values are not passing / receiving properly.

请找到以下我需要从C#调用的c ++代码和Calculate函数.谁能建议我如何在C#中使用适当的类型构造struct并将其传递给c ++.

Please find the below c++ code and the Calculate function which i need to call from C#. Can anyone suggest me how to construct struct with proper types in C# and pass it to c++.

C ++代码

typedef double MyFloat;
typedef int MyInt;
typedef short MyShort;
typedef char MyChar;

struct InParameter{

MyFloat mf;

MyInt mi;

mychar mc;

}

struct OutParameter{

MyFloat mf;

MyInt mi;
MyInt miArray[31];
MyShort ms;
mychar mc;

}
#define MY_DLL __declspec(dllexport)
#define MY_STD __stdcall
#define MY_EXTRN extern "C"

// C++ Function declaration to call from c#

MY_EXTRN MY_DLL MyShort MY_STD Calculate(InParameter &inp,OutParameter &oup)

推荐答案

嗨SureshRajamani，

您可以尝试这样的操作:

Hi SureshRajamani,

You can try something like this:

using System;
using System.Runtime.InteropServices;

namespace MyNameSpace{
    public class YourClass{
        [DllImport("DllFile.dll", EntryPoint = "HelloWorld")]
        public static extern void HelloWorld();

        [DllImport("DllFile.dll", EntryPoint = "ShowMe")]
        public static extern void ShowMe();
    }
}

Best regards!
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