谁帮我翻译下这段c++代码，转换成c#的

Question

 //卡序列号缓冲
        unsigned char myserial[5];
        unsigned char status;
        //函数指针声明
        unsigned char (__stdcall *idr_read)(unsigned char *serial);
        //提示当前目录
        AnsiString FileName=ExtractFilePath(Application->ExeName);
         //如果中没有"\"字符，就加进去
        if(FileName.SubString(FileName.Length(),1) != "\\")
        {
             FileName += "\\";
        }        FileName += "OUR_IDR.dll";
        if(!FileExists(FileName))
        {//如果文件不存在
                ShowMessage("无法在应用程序的文件夹找到ID卡读卡器动态库");
                return; //返回
        }
        HINSTANCE hDll;
        //加载动态库
        hDll=LoadLibrary(FileName.c_str());
        //提取动态库
        idr_read = (unsigned char (__stdcall * idr_read)(unsigned char *serial))GetProcAddress(hDll," idr_read ");
        //调用函数
        status = idr_read (myserial);
        //返回值处理
        switch(status)
        {
                case 0:
                        //TO-DO相应的处理，请在以下加入代码
                        break;
                case 1:
                        break;
                //...
         }
谢谢 大家了

Answer 1

        [System.Runtime.InteropServices.DllImport("OUR_IDR.dll", EntryPoint = "idr_read")]
        public static extern byte idr_read(char[] serial);
        private void Form1_Load(object sender, EventArgs e)
        {            char[] myserial = new char[5];
            byte status = idr_read(myserial);
            switch (status)
            {
                case 0:
                    break;
                case 1:
                    break;
            }
        }将OUR_IDR.dll和你的程序放在一个目录下，或放在系统的system32文件夹下http://www.cnblogs.com/xumingming/archive/2008/10/10/1308248.html