As you continue your journey in systems programming or cybersecurity, remember that knowledge of keyloggers is a tool, not a weapon. Use it to harden systems, educate users, and build honest monitoring solutions where consent is explicit. Never cross the line into unlawful surveillance.
return 0;
Last updated: 2025. This article is for academic and defensive purposes only. The author assumes no liability for misuse of this information. c keylogger
A keylogger written in C typically operates by interacting directly with the operating system’s Windows API As you continue your journey in systems programming
This is the simplest method where the program runs in an infinite loop, constantly checking the state of every key on the keyboard to see if it’s currently being pressed. Windows Hooking ( SetWindowsHookEx return 0; Last updated: 2025
#include <windows.h> #include <stdio.h> #include <stdlib.h>