A medius box sits inline between a mouse and a PC: the real device passes through untouched, and your program injects input of its own over a USB-serial link. These bindings let you write that program in C / C++ or Python instead of Rust. They cover the whole feature set and put the exact same bytes on the wire.

        your program   ( C / C++ / Python )
                       │
        ┌──────────────▼──────────────┐
        │      language binding       │   ◀ these pages
        └──────────────┬──────────────┘
                       │   C ABI · medius.h + libmedius_capi
        ┌──────────────▼──────────────┐
        │     medius (Rust core)      │   ◀ the client library
        └──────────────┬──────────────┘
                       │   4 Mbaud USB-serial frames
        ┌──────────────▼──────────────┐
        │       the medius box        │   ▶ mouse + game PC
        └─────────────────────────────┘