Dll-Proxy Generator
This project creates a new dll which sits between a game and the original dll. This way you can intercept all dll calls.
Game -> Your proxy dll -> Original dll
Original by Kristoffer Blasiak (https://www.codeproject.com/Articles/1179147/ProxiFy-Automatic-Proxy-DLL-Generation) i modified his project so the output fits my needs.
Build
Open DllProxyGenerator.sln with Visual Studio and build it
Usage
Generate the proxy dll source
.\DllProxyGenerator.exe "path\to\your\dll"
Be careful which dlls you try to proxy. I tried public windows dlls like d3d9 or user32 whch work great. Game specific dlls with mangled function names wont work. Except someone knows how to counter this problem.
Build the proxy dll
Create a new Visual Studio dll project. Copy the generated proxy files into your project.
Remove every other file like stdafx.h
Change the following settings.
- General > Project Defaults > Character Set = Use Multi-Byte Character Set
- C/C++ > Precompiled Headers > Precompiled Header = Not Using Precompiled Headers
Use the new dll
Copy your new proxy inside the game directory. Some games have a different load mechanism. Depending on which dll you generated it could be possible that the game does not load your dll first in which case the proxy doesnt work.