WPF 重定向DLL stdout

场景

在wpf程序中调用dll，dll中包含了stdout stdin之类的输出输入流，程序启动后，并不会写入到console的流中，这个时候需要用底层的API进行重定向
docs: https://docs.microsoft.com/en-us/dotnet/api/system.console.setout?view=netcore-3.1

QA：https://stackoverflow.com/questions/8555002/how-can-i-stream-data-from-a-managed-assembly-to-a-native-library-and-back-again

https://www.codeguru.com/csharp/csharp/cs_misc/sampleprograms/article.php/c7259/InterProcess-Communication-in-NET-Using-Named-Pipes-Part-1.htm

code

winapi定义

     [DllImport("kernel32.dll", EntryPoint = "GetStdHandle", SetLastError = true, CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)]
        private static extern IntPtr GetStdHandle(int nStdHandle);

        [DllImport("Kernel32.dll", SetLastError = true)]
        public static extern int SetStdHandle(int device, IntPtr handle);

        [DllImport("kernel32.dll", SetLastError = true)]
        static extern bool AttachConsole(uint dwProcessId);

        [DllImport("kernel32.dll", SetLastError = true, ExactSpelling = true)]
        static extern bool FreeConsole();

        [DllImport("kernel32.dll", SetLastError = true)]
        private static extern bool GenerateConsoleCtrlEvent(CtrlTypes dwCtrlEvent, uint dwProcessGroupId);

        [DllImport("kernel32.dll")]
        static extern bool SetConsoleCtrlHandler(ConsoleCtrlDelegate handlerRoutine, bool add);

        delegate bool ConsoleCtrlDelegate(CtrlTypes ctrlType);

调用

            FileStream fs = new FileStream("Test.txt", FileMode.Create);
            Encoding encoding = System.Text.Encoding.GetEncoding("UTF-8");

            StreamWriter standardOutput = new StreamWriter(fs, encoding);
            //set handle
            SetStdHandle(-11,fs);
            SetStdHandle(-12,fs);

重定向到到其他流

目前好像仅支持file 流，找了一些资料好像其他流实现需要通过windows pipe来实现，简直太麻烦了