Read MIDI Device Input In Ruby

Is is possible to trap the M开发者_如何学编程IDI signals being sent by my keyboard connected via MIDI-USB in Ruby? If not Ruby, how would I do it in C so I can make a Ruby extension?

Use PortMidi, which is part of the PortMedia project. A little Googling showed several references to existing Ruby bindings to PortMidi, so you may not need to do much/any work to get things running.

What is PortMedia?

• PortMedia is a set of APIs and library implementations for music and other media.
• PortMedia is open-source and runs on Windows, Macintosh, and Linux.
• Currently, libraries support Audio I/O and MIDI I/O.