UWHook

Minimal native function hooking library for x86_64 on Windows.

Features

• NOT THREAD SAFE: Optionally record address of called function before triggering hook (retrieve using UWHook::getTrampolineCaller())
• Temporary hook release using UWHookRelease RAII class
• Very very minimal
• No global state
• Easily portable to other platforms

Limitations

• Only works on Windows for x86_64 (64 bit x86) programs
• Won't hook inlined function calls
• Can't pass user data to hook function
• Requires function padding of at least 12 bytes in hooked code if any hooked function is shorter than 12 bytes
• Allows no more than one hook on a single function

Use cases

• Reverse engineering
• Game modding (works with il2cpp!)