FluentTerminal/FluentTerminal.SystemTray/Services/ConPty/Native/ConsoleApi.cs

using Microsoft.Win32.SafeHandles;
using System;
using System.Runtime.InteropServices;

namespace FluentTerminal.SystemTray.Services.ConPty.Native
{
    /// <summary>
    /// PInvoke signatures for Win32's Console API.
    /// </summary>
    internal static class ConsoleApi
    {
        internal const uint ENABLE_VIRTUAL_TERMINAL_PROCESSING = 0x0004;
        internal const uint DISABLE_NEWLINE_AUTO_RETURN = 0x0008;
        internal const uint GENERIC_WRITE = 0x40000000;
        internal const uint GENERIC_READ = 0x80000000;
        internal const uint FILE_SHARE_WRITE = 0x00000002;
        internal const uint OPEN_EXISTING = 0x00000003;
        internal const uint FILE_ATTRIBUTE_NORMAL = 0x80;
        internal const string ConsoleOutPseudoFilename = "CONOUT$";

        [DllImport("kernel32.dll", EntryPoint = "AllocConsole", SetLastError = true, CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)]
        internal static extern bool AllocConsole();

        [DllImport("kernel32.dll", SetLastError = true)]
        internal static extern IntPtr GetConsoleWindow();

        [DllImport("kernel32.dll", SetLastError = true)]
        internal static extern bool SetConsoleMode(SafeFileHandle hConsoleHandle, uint mode);

        [DllImport("kernel32.dll", SetLastError = true)]
        internal static extern bool GetConsoleMode(SafeFileHandle handle, out uint mode);

        [DllImport("kernel32.dll", EntryPoint = "CreateFileW", SetLastError = true, CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)]
        internal static extern IntPtr CreateFileW(
             string lpFileName,
             uint dwDesiredAccess,
             uint dwShareMode,
             IntPtr lpSecurityAttributes,
             uint dwCreationDisposition,
             uint dwFlagsAndAttributes,
             IntPtr hTemplateFile);

        [DllImport("kernel32.dll", SetLastError = true)]
        internal static extern bool SetConsoleCtrlHandler(ConsoleEventDelegate callback, bool add);
        internal delegate bool ConsoleEventDelegate(CtrlTypes ctrlType);

        internal enum CtrlTypes : uint
        {
            CTRL_C_EVENT = 0,
            CTRL_BREAK_EVENT,
            CTRL_CLOSE_EVENT,
            CTRL_LOGOFF_EVENT = 5,
            CTRL_SHUTDOWN_EVENT
        }
    }
}