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Using the FFI Gem in Rpg Maker XP?

BMM Archive · July 15, 2026

Preserved forum archive. This topic stores the original first post and locally mirrored RPG Maker Web attachments when available. It is posted by the BMMPlay archive account, not by the original creator.

Original Source

  • Original title: Using the FFI Gem in Rpg Maker XP?
  • Original author: IoI_xd
  • Original date: March 11, 2024
  • Source thread: https://forums.rpgmakerweb.com/threads/using-the-ffi-gem-in-rpg-maker-xp.166706/
  • Source forum path: Game Development Engines > Ruby Game System (RGSS) Scripts > RGSSx Script Support

Summary

So this is probably way more then anyone would expect to do with XP and is job more suited for modern RPG Maker, but I want to consider my options with the project I'm thinking about doing. FFI (Foreign Function Interface) is something that many languages (including ruby) have, and it allows you to interface with programs or libraries made in compiled languages, such as C/C++. It'd be most helpful for integrating other libraries, either by myself or others, into a game (the most common use case I can think...

Archived First Post

So this is probably way more then anyone would expect to do with XP and is job more suited for modern RPG Maker, but I want to consider my options with the project I'm thinking about doing.

FFI (Foreign Function Interface) is something that many languages (including ruby) have, and it allows you to interface with programs or libraries made in compiled languages, such as C/C++. It'd be most helpful for integrating other libraries, either by myself or others, into a game (the most common use case I can think of is integrating ffmpeg, although that would probably be a bit much for XP).

Modern RPG Maker supports this by accident in the form of WebAssembly, and as I just linked, there does exist an FFI system for Ruby, in the form of the "ffi" gem. My question is, is it possible to use this gem with RPG Maker XP? Has anyone tried?

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