Introduction

FFI stands for Foreign Function Interface. This project is ruby-ffi, an FFI implementation for Ruby.

• [[Why use FFI]] – Some good reasons to start playing with Ruby-FFI
• [[Features at a Glance]]
• [[Core Concepts]] – Fundamental high-level FFI concepts
• [[Basic usage]] – Basic usage concept examples underlying Ruby-FFI
• [[Examples]] – Real-world(ish) examples
• [[Windows Examples]] – Real-world(ish) examples using the Windows API
• [[Presentations]] – Talks and Presentations about FFI and related projects

Reference

• [[Loading Libraries]] – Tips on using ffi_lib, see also [[Using Multiple and Alternate Libraries]]
• [[Types]] – A list of the supported types (like :int, etc.)
• [[Enums]] – Using enums with FFI
• [[Structs]] – Using structs with FFI
• [[Pointers]] – Using pointers (including Strings) with FFI
• [[Binary Data]] – Handling binary data (e.g. Ruby Strings of Encoding::BINARY) with FFI
• [[Callbacks]] – Using function pointers to call Ruby code from C
• [[Functions with multiple signatures]]
• rdoc – detailed documentation here

Help

• Mailing list – Ask for support here!
• [[Using ruby ffi on Os X with mixed architectures, universal binaries]]

Initiatives

• [[Proposal for standard 1.0 API]] – consolidating the lessons learned
• [[Projects Using FFI]] – A list of projects using FFI