This is part of the ScpToolkit project. This project is published for historical reasons and no longer maintained by me. If you're seeking for a modern reincarnation take a look at ViGEm.

Garry’s Mod (often abbreviated as GMod) is a sandbox game developed by Facepunch Studios and published by Valve. The game has a rich Lua scripting API which allows for a wide range of game mods and ...