C# 调用c+；时访问冲突写入位置0x0000000C错误+；来自c的dll#

我所做的：

using System;
namespace Test
{
    class Program
    {
        static void Main(string[] args)
        {
            Utility test1 = new Utility();
            algobucket test2 = new algobucket();

            Console.WriteLine("Algobucket Algorithm\n ");
            int k = 1;
            byte[] imageData1 = new byte[5000000];
            byte[] imageData2 = new byte[5000000];
            int[] target1 = new int[1000];

            while (k == 1)
            {
                int m;
               
                test1.CameraRead(imageData1);
                int a = test2.iristracker(imageData1, 640, 480, imageData2, target1, 1000);
                m = test1.ImageShow(imageData2);

                if (m == 1)
                {
                    Console.WriteLine("Stopped");
                    break;                    
                }
            }

            Console.WriteLine("Exited");
        }
    }
}

我从C++中调用了一个C++ DLL。它工作正常，但当我退出该进程时，它显示以下错误

停止工作

当我在VisualStudio中调试代码时，它会显示

Test.exe中0x773C77A2（ntdll.dll）处的未处理异常：0xC0000005:访问冲突写入位置0x0000000C

我在C#中使用的代码：

using System;
namespace Test
{
    class Program
    {
        static void Main(string[] args)
        {
            Utility test1 = new Utility();
            algobucket test2 = new algobucket();

            Console.WriteLine("Algobucket Algorithm\n ");
            int k = 1;
            byte[] imageData1 = new byte[5000000];
            byte[] imageData2 = new byte[5000000];
            int[] target1 = new int[1000];

            while (k == 1)
            {
                int m;
               
                test1.CameraRead(imageData1);
                int a = test2.iristracker(imageData1, 640, 480, imageData2, target1, 1000);
                m = test1.ImageShow(imageData2);

                if (m == 1)
                {
                    Console.WriteLine("Stopped");
                    break;                    
                }
            }

            Console.WriteLine("Exited");
        }
    }
}

在上面的代码中，dll在以下行中调用

                test1.CameraRead(imageData1);
                int a = test2.iristracker(imageData1, 640, 480, imageData2, target1, 1000);
                m = test1.ImageShow(imageData2);

CameraRead（）和ImageShow（）是从一个dll调用的，iristracker（）是从另一个dll调用的

实用程序.h

#ifndef UTILITY_H
#define UTILITY_H

class Utility
{

public:
 int CameraRead(unsigned char* Output);
 int ImageShow(unsigned char* Input);
int DrawRectOnImage(unsigned char* image,int* rect,int n);
int DrawPointOnImage(unsigned char* image,int* rect,int n);
};

#endif  /* UTILITY_H */

Iristracker.hpp

#ifndef IRISTRACKER_HPP
#define IRISTRACKER_HPP
#include <iostream>
class algobucket 
{

public:


 int iristracker(unsigned char* input,int width,int height,unsigned char* Output,int* output,int n,std::string xml_path="");  

};

#endif  /* IRISTRACKER_HPP */

Swig接口Iris.i

%module testing

%{
#include "Utility.h"
%}
%include "arrays_csharp.i"

  %apply unsigned char OUTPUT[] { unsigned char* Output}
   %apply unsigned char INPUT[] { unsigned char* Input}
   %apply unsigned char INPUT[] { unsigned char* image}
  %apply int INPUT[] { int* rect}
 %include "Utility.h"

%module algo

%{
#include "IrisTracker.hpp"
%}
%include "arrays_csharp.i"
%include "std_string.i"
  %apply unsigned char INPUT[] { unsigned char* input}
  %apply unsigned char OUTPUT[] { unsigned char* Output}
  %apply int OUTPUT[] { int* output}
 %include "IrisTracker.hpp"

这里遗漏了上述swig接口文件内存处理的任何类型映射

---

如何解决此问题？

此问题可能存在于此处未提供的代码中。dll是如何导入的？C++代码看起来像什么？你确定这些数组足够吗？您需要将其减少到一个最小值。错误消息是典型的缓冲区溢出（可能在某些字符串中）。此外，请检查导入函数的调用约定。C++默认值>代码> CDDEL< /COD> vs.什么.NET作为默认值<代码> STDCALL> /COD>。堆栈中的不匹配会导致问题。@尼尔我使用使用swig生成的包装文件导入了dll。@CibinWilliam您没有提到哪一行调用了dll。第二，如果客户端必须猜测要分配多少字节，并祈祷分配足够，那么这是一个糟糕的设计。通常的做法是DLL创建内存，并返回内存和创建的大小。否则，客户端将提供最大大小作为参数。