使用AttachConsole，程序不接受输入

Question

我的代码以前使用AllocConsole这样：

AllocConsole();
var arg = Console.ReadLine();
// do stuff with arg

它运作良好。但是，我不喜欢这样的事实：如果我从控制台启动应用程序（比如在CMD窗口中运行MyApp.exe），它会创建一个新的控制台实例，所以我改变了AllocConsole对此：

if(!AttachConsole(-1))
    AllocConsole();

输出仍然打印到控制台，但是如果我点击“输入”，就会发生奇怪的事情。

从图像中看可能不太容易，但我所做的是运行应用程序。然后输出几行用法，并询问输入（“Action [run | install | uninstall | quit]”）。我写了“run”并点击了Enter，但是控制台是在CMD上引导输入，而不是我的应用程序。因此，当我的应用程序仍在运行时，它没有得到任何输入。这有点像在Linux中使用&运行应用程序。

有什么方法可以让我的应用程序从启动它的CMD窗口获取输入？

[编辑] 完整代码：

#region Custom Launching Helpers (for when not launced as a service)

private enum Action
{
    Run,
    Install,
    Uninstall
}

private static string PrintUsage()
{
    Console.WriteLine("Usage: <application-name> [run|install|uninstall]");
    Console.WriteLine("Use run to run a single itteration of the program.");
    Console.WriteLine("Use install to install the service.");
    Console.WriteLine("Use uninstall to uninstall the service.");
    Console.Write("Action [run|install|uninstall|quit]: ");
    return Console.ReadLine();
}

[DllImport("kernel32.dll")]
private static extern bool AttachConsole(int dwProcessId);

[DllImport("kernel32.dll")]
private static extern bool AllocConsole();

[DllImport("kernel32.dll")]
private static extern bool FreeConsole();

[DllImport("kernel32.dll")]
private static extern bool SetConsoleTitle(String lpConsoleTitle);

private static void RequireConsole()
{
    if (!AttachConsole(-1))
        AllocConsole();
}

#endregion


/// <summary>
/// The main entry point for the application.
/// </summary>
static void Main(string[] args)
{
    // Environment.UserInteractive will be true when launced as a normal application
    // (for instance by double-clicking, or running form a cmd-prompt).
    // 
    // Services can't run this way, thus we present the user with a menu (if no spesific action
    // was passed allong as a startup-parameter) that enables the user either to run a single
    // itteration, or to install/uninstall the service.
    if (Environment.UserInteractive)
    {
        try
        {
            // open a console
            // since AssemblyService isn't a console-application, one must be crated explicitly.
            RequireConsole();
            SetConsoleTitle("AssemblyService 2");
            Action action;

            // If no command-line arguments are provided, print usage
            // and enable the user to input an argument while running.
            var arg = args.Length == 0 ? PrintUsage() : args[0];

            while (true)
            {
                switch (arg)
                {
                    case "run":
                        action = Action.Run;
                        goto execute;

                    case "install":
                        action = Action.Install;
                        goto execute;

                    case "uninstall":
                        action = Action.Uninstall;
                        goto execute;

                    case "quit":
                        return;

                    default:
                        // If the argument is invalid, keep asking the user
                        // untill a valid argument is given.
                        arg = PrintUsage();
                        Console.WriteLine("Got arg: {0}", arg);
                        break;
                }
            }

        execute:
            ; // empty statement so it compiles
            // unimportant, does stuff;
        }
        finally
        {
            // Release the console.
            Console.WriteLine();
            FreeConsole();
        }
    }
    else
    {
        // Run as service (only in non-interactive session).
        //ServiceBase.Run(new AssemblyService());
        // rather just exit
    }
}

[编辑2] 我尝试添加以下内容：

var inputHandle = GetStdHandle((int) StdHandle.Stdin);
var safeInputHandle = new SafeFileHandle(inputHandle, true);
var input = new FileStream(safeInputHandle, FileAccess.Read);
Console.SetIn(new StreamReader(input));

它导致根本没有任何东西打印到控制台（所以我不知道发生了什么）。然后我尝试为StdOut和StdErr添加setter：

var outputHandle = GetStdHandle((int) StdHandle.Stdout);
var safeOutputHandle = new SafeFileHandle(outputHandle, true);
var output = new FileStream(safeOutputHandle, FileAccess.Write);
Console.SetOut(new StreamWriter(output));

var errHandle = GetStdHandle((int) StdHandle.Stderr);
var safeErrHandle = new SafeFileHandle(errHandle, true);
var err = new FileStream(safeErrHandle, FileAccess.Write);
Console.SetError(new StreamWriter(err));

根本没有输出到控制台。

[编辑3] 使用

启动应用程序

start /wait "AssemblyService 2.exe"

导致创建一个显示CMD提示符的新窗口，但仍然不允许我输入应用程序的输入。它也没有显示输出。