Getting input from MIDI devices on a Mac

[Ben Wheatley]

Hi,

I have a Mac, and I'm trying to write a rhythm-action game, taking input from a MIDI keyboard attached to the computer. Following the examples I've seen elsewhere, I have this code to list the available MIDI devices:

MidiDevice.Info md_infos[] = MidiSystem.getMidiDeviceInfo();
for (i=0; i<md_infos.length; ++i) {
	System.out.println(md_infos[i].getName());
}

Unfortunately, this code will always print exactly two lines ("Real Time Sequencer" and "Java Sound Synthesizer"), regardless of whether or not I have my MIDI keyboard plugged in. Other applications on the system (e.g. GarageBand) recognise they keyboard and it's input. Can anyone help?

(Intel MacMini, MacOS X 10.5.7; MIDI keyboard is attached via a MIDI-to-USB converter)

[freqrush]

Check out the code of JSynthLib, which is an "Open Source Universal Synthesizer Patch Editor / Librarian written in the Java Language".

It must have a method you can get an example from, as it also recognises the available MIDI ports. Browse or download the code here: http : // jsynthlib . svn . sourceforge.net/viewvc/jsynthlib/trunk/ (remove spaces, I can't post links yet)