Check .list Until PortName found

Answers

• GoToLoop

  September 2014 edited September 2014

  You should create a parallel Thread in order to keep attempting instantiating a new MidiBus until success!
  For that, you can use the following Processing's undocumented function called thread(""). (*)
  It invokes a function w/ the same name as its String argument as a separate Thread.
  You just need to arrange a loop there which breaks itself once a MidiBus object is created.

  Check it out my example below: B-)

  P.S.: Since I've never used this library before, got no idea how to check whether a device is valid!
  It's up to you to modify this attempt in order to do your bid! :p

  // forum.processing.org/two/discussion/7393/
  // check-list-until-portname-found
  
  import themidibus.MidiBus;
  MidiBus device;
  
  static final String MIDI  = "Real Time Sequencer";
  static final int INTERVAL = 10 * 1000; // 10 seconds.
  static final int FPS = 1;
  
  void setup() {
    size(300, 200, JAVA2D);
    frameRate(FPS);
    thread("checkMIDI");
  }
  
  void draw() {
    background((color) random(#000000));
  
    frame.setTitle("Seconds: " + frameCount/FPS);
  
    if (device != null) {
      println("Finally found: ");
      println(device);
      noLoop();
    }
  }
  
  void checkMIDI() {
    for (; device == null; delay(INTERVAL))
      device = new MidiBus(this, MIDI);
  }