IHHook

Version r24 - 2026-08-07 (see github for full changes)

Added SnakeBite builds for Ultimate ASI Loader and plugin folder versions.

Compatibility with alicealys's tpp-mod.

Simplified and futureproofed version check. Added _version_info.txt to the check.

Cleaned up my (rlc) additions.

Renamed internal functions to match real names.

Added dxvk compatibility fix by choomraider.

For MGSV version 1. 15 (in title screen), 1. 0. 15. 4 in exe, day3900 in version_info.txt

For Infinite Heaven r266+

Previously bundled with Infinite Heaven, IHHook has been split into a seperate install and nexus page to isolate feedback and issues.

IHHook source: https://github.com/kapuragu/IHHook

IHHook mod: https://www.nexusmods.com/metalgearsolidvtpp/mods/1226

Infinite Heaven mod: https://www.nexusmods.com/metalgearsolidvtpp/mods/45

## Description

A proxy dll (of dinput8.dll) that loads with MGSV to provide extended features for modding.

## Dependencies

### Runtime

Microsoft Visual C++ Redistributable for Visual Studio, x64

https://aka.ms/vs/17/release/VC_redist.x64.exe

### Development

MSVS v141 - VS 2017 C++ x64/x86 build tools (v14. 16)

Windows 10 SDK (10. 0. 17763. 0)

(Install via Visual Studio Installer > Individual Components)

## IHHook features

See this youtube playlist for features that are visually demonstratable

https://www.youtube.com/playlist?list=PLSKlVTXYh6F9XCIpHUGTSkd9gDzoU6N1s

dear-IMGUI based menu for Infinite Heaven.

ERL7okZVcW4

Lua C API support (mostly complete)

Allows extending the MGSVs embedded lua via C.

Does not have dynamic library support as mgsv lua is statically compiled, and running the mgsv lua state through a seperate distro of lua isn't desirable since the mgsv lua core is modified from default.

However it is possible to compile lua C modules into IHHook.

Logging via spdlog.

Infinite Heaven uses this for better performance (mostly used for debugging)

Has it's own seperate log for debug/info output.

Named Pipe server: Starts up a threaded Named Pipe server with two pipes mgsv_in, mgsv_out.

Currently used by Infinite Heaven to improve performance when using IHExt and should open further posibilities I was reluctant to persue due to old text file based IH>IHExt communication.

CityHash logging (currently has to be compiled in with a #define) using emooses cityhash logging (though using spdlog for better performance) that IHHook was initially built off.

RawInput keyboard processing and blocking (proof of concept)

## Further info

See IHHHook.h for some comments about the project.