using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

using System.Runtime.InteropServices;

using System.Diagnostics;

using System.Windows.Forms;

using NLog;

namespace Utils.common

{

    class ScreenKeyboard

    {

        private static ILogger logger = NLog.LogManager.GetCurrentClassLogger();

        public static bool isShowNumBoard = false;

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

        public static extern bool Wow64DisableWow64FsRedirection(ref IntPtr ptr);

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

        public static extern bool Wow64RevertWow64FsRedirection(IntPtr ptr);

        public static IntPtr ptr = new IntPtr();

        public static void ShowScreenKeyboard()

        {

            try {

                //判断软键盘是否进程是否已经存在，如果不存在进行调用

                Process[] pro = Process.GetProcessesByName("osk");

                bool isWow64FsRedirectionDisabled = Wow64DisableWow64FsRedirection(ref ptr);

                //键盘如果已经打开则重新打开，防止最小化无法显示

                if (pro != null && pro.Length > 0)

                {

                    Process kbpr = pro[0];

                    kbpr.Kill();

                    if (isWow64FsRedirectionDisabled)

                    {

                        Process.Start(@"C:\WINDOWS\system32\osk.exe");

                        Wow64RevertWow64FsRedirection(ptr);

                    }

                    return;

                }

                if (isWow64FsRedirectionDisabled)

                {

                    Process.Start(@"C:\WINDOWS\system32\osk.exe");

                    Wow64RevertWow64FsRedirection(ptr);

                }

            }

            catch (Exception ex)

            {

                logger.Error(ex.Message);

            }

        }

    }

}