Creating a "Wallhack" for Counter-Strike 1.6 using OpenGL involves intercepting calls to the graphics driver—specifically those related to depth testing—to allow players to be seen through walls.
Below is a highly simplified and conceptual example of how you might approach this. Note that actual implementation would require significantly more complexity and knowledge of the game's internals. opengl wallhack cs 16 full
Keep in mind that using wallhacks and ESPs may be against the terms of service of the game and may result in account bans or other penalties. This information is provided for educational purposes only. Creating a "Wallhack" for Counter-Strike 1