btscan.rb

# Simple bluetooth scan with IOBluetooth (macruby)

framework 'appkit'
framework 'IOBluetooth'

# IOBluetoothInquiryDelegate
class EventHandler
  def deviceInquiryStarted(sender)
    puts "Searching for devices..."
  end

  def deviceInquiryComplete(sender, error:error, aborted:aborted)
    puts "User abort!" if aborted
    puts "Scanning stopped, bye."
    exit
  end

  def deviceInquiryDeviceFound(sender, device:device)
    puts "Device found: #{device} (name: #{device.nameOrAddress})"
  end

  def deviceInquiryDeviceNameUpdated(sender, device:device, devicesRemaining:remaining)
    puts "Update name of device #{device}: '#{device.nameOrAddress}'"
  end

  def deviceInquiryUpdatingDeviceNamesStarted(sender, devicesRemaining:remaining)
    puts "Updating names of: #{remaining}"
    sender.stop if remaining == 0
  end
end

# NSApplication
class AppDelegate
  def applicationDidFinishLaunching(notification)
    event_handler  = EventHandler.new
    inquiry = IOBluetoothDeviceInquiry.new
    inquiry.setUpdateNewDeviceNames(true)
    inquiry.setDelegate(event_handler)
    inquiry.start
  end
end

# let's run. :)
app = NSApplication.sharedApplication
app.delegate = AppDelegate.new
app.run