c# 通过win32 api 得到指定Console application Content

小程序：扫一扫查出行
【扫一扫了解最新限行尾号】
复制小程序

已知的问题：
　 1. 调试的时候会报IO 异常，非调试环境是正常的
   2. Windows 应用程序才可以使用,可以用非windows应用程序包一层

using System;

using System.Collections.Generic;

using System.Diagnostics;

using System.IO;

using System.Linq;

using System.Runtime.InteropServices;

using System.Text;

using System.Threading;

using System.Threading.Tasks;

using System.Windows.Forms;

using windowsApiAcitonSimulation.Win32Action;

namespace winFormTest

{

    static class Program

    {

        [DllImport("kernel32.dll", SetLastError = true)]

        static extern bool AttachConsole(uint dwProcessId);

        [DllImport("kernel32.dll", SetLastError = true)]

        static extern IntPtr GetStdHandle(int nStdHandle);

        [DllImport("kernel32.dll", SetLastError = true)]

        static extern bool ReadConsoleOutputCharacter(IntPtr hConsoleOutput, [Out] StringBuilder lpCharacter, uint length, Coord bufferCoord, out uint lpNumberOfCharactersRead);

        [StructLayout(LayoutKind.Sequential)]

        public struct Coord

        {

            public short X;

            public short Y;

        }

        public static string ReadCharacterAt(int x, int y, int length)

        {

            IntPtr consoleHandle = GetStdHandle(-);

            if (consoleHandle == IntPtr.Zero)

            {

                return null;

            }

            Coord position = new Coord

            {

                X = (short)x,

                Y = (short)y

            };

            StringBuilder result = new StringBuilder(length);

            uint read = ;

            if (ReadConsoleOutputCharacter(consoleHandle, result, (uint)length, position, out read))

            {

                return result.ToString();

            }

            else

            {

                return null;

            }

        }

        /// <summary>

        /// 关闭进程

        /// </summary>

        /// <param name="processName">进程名</param>

        private static Process GetNgrokProcess(string processName)

        {

            Process[] myproc = Process.GetProcesses();

            foreach (Process item in myproc)

            {

                if (item.ProcessName == processName)

                {

                    return item;

                }

            }

            return null;

        }

        /// <summary>

        /// 应用程序的主入口点。

        /// </summary>

        [STAThread]

        static void Main()

        {

            var process = GetNgrokProcess("ngrok");

            //注意要是 Windows 应用程序才可以 AttachConsole成功

            var flag = AttachConsole((uint)process.Id);

            Console.CursorLeft = ;

            Console.CursorTop = ;

            string content = ReadCharacterAt(, , );

            //if (content?.IndexOf("reconnecting") > -1)

            //{

            //    var ptr = WindowsApiHelp.FindWindow("ConsoleWindowClass", @"ngrok.bat");

            //    if (ptr == IntPtr.Zero)

            //    {

            //        ptr = WindowsApiHelp.FindWindow("ConsoleWindowClass", @"选择ngrok.bat");

            //    }

            //    var pid = GetCurrentProcessID(ptr);

            //    WindowsApiHelp.SendMessage(ptr, WindowsMessages.WM_CLOSE, 0, 0);

            //}

        }

    }

}