获取系统条目异常 [英] Getting a System Entry Exception

问题描述

我有一个本地库，如下所示。

Hello.h：

I have a native library written as below.
Hello.h:

#include<iostream>
using namespace std;


class __declspec(dllexport) Hello
{
public:	
	int PrintHello(char* str);
};

Hello.cpp

Hello.cpp

#include<iostream>
#include "Hello.h"
using namespace std;

int Hello::PrintHello(char* str)
{
    cout<<"Hello "<< str <<endl;
    return 0;
}

然后写了一些Exposing函数



API .h

then wrote some Exposing function

API.h

#include<iostream>
#include"Hello.h"
__declspec(dllexport) Hello* APICreateHello();
__declspec(dllexport) void APIDestroyHello();

API.cpp：

API.cpp:

#include<iostream>
#include "API.h"

extern "C" __declspec(dllexport)  Hello*  __cdecl APICreateHello(char* str)
{
    return new Hello();
}
extern "C" __declspec(dllexport)  void   APIDestroyHello(Hello* obj)
{
        delete obj;
}

Dumpbin导致APICreateHello和APIDestroyHello原样。没有姓名错误。



尝试使用C＃main进行访问，但导致EntryPointException。

Dumpbin results in APICreateHello and APIDestroyHello as it is. there is no Name mangling.

Tried accessing using C# main as below but results in EntryPointException.

public class MyCustomDLLWrapper
{
    // extern "C" MYCUSTOMDLL_API int AddNumbers(int x, int y);
    [DllImport("TestLib.dll",EntryPoint = "APICreateHello")]
    public static extern IntPtr APICreateHello(string str);
}
namespace TestManagedApp
{
    class Program
    {        public static int Main(string[] args)
        {
            IntPtr x = MyCustomDLLWrapper.APICreateHello("Pavan");


            return 0;
        }
    }
}

请帮助。在此先感谢

Please help. Thanks in advance

推荐答案

我已经使用 __ stdcall 构建了这些项目，如上所述，它可以工作，到目前为止就这样。我让你继续处理剩下的问题。

I have built these projects using __stdcall as noted above, and it works, as far as it goes. I leave you to work on the remaining issues.

这篇关于获取系统条目异常的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！