从 C/C++ (VS 2010) 代码创建 MFC DLL，供 C# WCF Web 服务使用

我有一个用 C/C++ 编写的第三方组件(在 VS 2010 上)，可以下载 这里.

I have a third party component written in C/C++ (on VS 2010) which can be downloaded here.

该组件接受 3 个参数作为输入(一个文件名和两个数字)并在控制台中输出一个结果，然后输出一个文件.

This component accepts 3 parameters as input (a filename and two numbers) and outputs a result in the console, and then outputs a file.

我在 C# WinForm 项目中使用 Process 和 ProcessStartInfo 来使用这个工作正常的组件.但是，现在我想在 WCF C# RESTful 服务中使用它，在这种情况下，我认为使用 WinForm 的解决方案将不起作用.有人建议我将其转换为 MFC DLL，然后使用 InterOp 通过我的 C# Web 服务调用非托管 DLL(欢迎其他建议).

I've used Process and ProcessStartInfo in a C# WinForm project to consume this component which works fine. However, now I want to consume this in a WCF C# RESTful service, in which case the solution I thought with WinForm will not work. It was suggested that I instead convert this to a MFC DLL and then use InterOp to call the unmanaged DLL through my C# web service (other suggestions are welcome).

不幸的是，我不知道如何做到这一点，而且我对 C/C++ 的了解相当一般.所以我的问题是:如何从接受这 3 个参数的组件创建一个 DLL(取自 main()):

Unfortunately, I have no idea on how to do that and my knowledge on C/C++ is fairly average. So my question is: How do I create a DLL from that component which accepts these 3 parameters (taken from main()):

    cin >> fname;
    cin  >> minA;
    cin  >> minO;

然后做它应该做的任何计算并返回它(再次取自 main()):

then does whatever calculations it's supposed to do and return this (again taken from main()):

cout << "\nNumber is: " << num;

(显然仍然输出它应该输出的文件)?

(and obviously still output the file it's supposed to output) ?

任何帮助将不胜感激.提前致谢！

Any help would be HIGHLY appreciated. Thanks in advance!

更新:作为参考，这里是我上面提到的 WinForm 实现.

UPDATE: As a point of reference, here is my WinForm implementation mentioned above.

    ProcessStartInfo cmdStartInfo = new ProcessStartInfo();
    Process cmdProcess = new Process();
    BackgroundWorker BWorker = new BackgroundWorker();

//is able to report progress
    BWorker.WorkerReportsProgress = true;
    //is able to be cancelled
    BWorker.WorkerSupportsCancellation = true;
    //attach events
    BWorker.DoWork += worker_DoWork;
    BWorker.RunWorkerCompleted += worker_RunWorkerCompleted;
    BWorker.RunWorkerAsync();

  private void worker_DoWork(object sender, DoWorkEventArgs e)
    {
        if (firstTimeLoaded)
        {
            cmdStartInfo.FileName = Path.GetFullPath("../../Resources/thirdparty.exe");
            cmdStartInfo.WorkingDirectory = Path.GetFullPath("../../Resources/");
            cmdStartInfo.RedirectStandardOutput = true;
            cmdStartInfo.RedirectStandardError = true;
            cmdStartInfo.RedirectStandardInput = true;
            cmdStartInfo.UseShellExecute = false;
            cmdStartInfo.CreateNoWindow = true;
            cmdProcess.StartInfo = cmdStartInfo;
            cmdProcess.SynchronizingObject = this;
            cmdProcess.ErrorDataReceived += cmd_Error;
            cmdProcess.Exited += cmd_Exited;
            cmdProcess.EnableRaisingEvents = true;
            cmdProcess.Start();
            cmdProcess.BeginErrorReadLine();
            firstTimeLoaded = false;
        }
        while (!cmdProcess.HasExited)
        {
            if (use)
            {
                if (BWorker.CancellationPending)
                {
                    e.Cancel = true;
                }
                StringBuilder builder = new StringBuilder();
                //read unbuffered output
                while (cmdProcess.StandardOutput.Peek() != -1)
                {
                    char inputChar = (char)cmdProcess.StandardOutput.Read();
                    if (inputChar != '\r' && inputChar != '\n')
                    {
                        builder.Append(inputChar);
                    }
                    if (inputChar == '\n')
                    {
                        break;
                    }
                }
                if (cmdProcess.StandardOutput.Peek() == -1)
                {
                    cmdProcess.StandardOutput.DiscardBufferedData();
                }
                //process the output
                string output = builder.ToString();
                //determine appropriate action
                switch (output)
                {
                    case "Enter file name: ":
                        cmdProcess.StandardInput.WriteLine(textBox1.Text);
                        break;
                    case "Enter minimum size of A: ":
                        cmdProcess.StandardInput.WriteLine(textBox2.Text);
                        break;
                    case "Enter minimum size of O: ":
                        cmdProcess.StandardInput.WriteLine(textBox3.Text);
                        break;
                }
                if (output.Contains("Number: "))
                {
                    MessageBox.Show("Number is: " + output.Substring(output.LastIndexOf(" ") + 1));
                    use = false;
                }         

            }

        }
    }