How to call the soft keyboard under the tablet Windows program

Http://stackoverflow.com/questions/21140852/start-tabtip-with-numpad-view-open  [dllimport ("user32.dll", SetLastError = true, CharSet = CharSet.Auto)]        Private STA TIC extern bool PostMessage (IntPtr hWnd, uint MSG, IntPtr WParam, IntPtr lParam);        [DllImport ("U Ser32.dll ", SetLastError = true, CharSet = CharSet.Auto)]        private static extern IntPtr Findwind ow (String lpclassname, String lpwindowname);          private static void Killtabtip () & nbsp       {           //Kill the previous process so the registry change would t Ake effect.            var processlist = process.getprocesses ();       & nbsp     foreach (Var process in processlist. Where (Process = process. ProcessName = = "Tabtip")             {              &NBSP ; Process. Kill ();            &NBSp   break;           }       }         Pub Lic static void Showtouchkeyboard (bool isVisible, BOOL Numerickeyboard)         {      & nbsp     if (isVisible)             {              &N Bsp Const string keyName = "hkey_current_user\\software\\microsoft\\tablettip\\1.7";                 var regvalue = (int) registry.getvalue (keyName, "Keyboardlayoutpreference", 0);    & nbsp           var regshownumerickeyboard = Regvalue = 1;           &NB Sp    //Note:remove this if does not want to control docked state.                var dockedregvalue = (int) registry.getvalue (keyName, "Edgetargetdockedstate", 1);        &NBS P       var restoredockedstate = Dockedregvalue = = 0;                 if (Numerickeyboard && Regshownumerickeyboard = false)                 {&N Bsp                  //Set the registry so it'll show the number pad via the Thumb keyboard.                    Registry.setvalue (KeyName, "keyboardl Ayoutpreference ", 1, Registryvaluekind.dword);                     Kill the previous process so the registry change would take effect.              &NB Sp     Killtabtip ();               }          &NB Sp     ELSE if (Numerickeyboard = = False && Regshownumerickeyboard)           &NBSP ;   &NBSp {                   //Set the registry so it won't show the number Pad via the thumb keyboard.                    Registry.setvalue (keyName , "Keyboardlayoutpreference", 0, Registryvaluekind.dword);                 & nbsp  /Kill The previous process so the registry change would take effect.            &NBS P       Killtabtip ();               }       &NBS P        //Note:remove this if does not want to control docked state.                if (restoredockedstate)                 {                   //Set the registry so it'll show as docked at the bottom rather than Floating.                    Registry.setvalue (keyName, "Edgetargetdockedstate", 1, Registryvaluekind.dword);                    //Kill the Previ OUs process so the registry change would take effect.                    Killtabtip ();               }             &NBS P   Process.Start ("C:\\Program Files\\Common Files\\Microsoft Shared\\ink\\tabtip.exe");           }            else            {  &nbs P             var win8version = new Version (6, 2, 9200, 0);         & nbsp       if (Environment.OSVersion.Version >= win8version)                 {    &nbsp               const int wmsyscommand = 274;            &N Bsp       const UINT SCCLOSE = 61536;                    INTP TR Keyboardwnd = FindWindow ("Iptip_main_window", null);                  &NBS P PostMessage (Keyboardwnd, Wmsyscommand, (int) scclose, 0);               }  &N Bsp        }       }