I've been going through the MyRecorder example in the QTKit Capture Programming Guide (which works fine) but am having problems with the MacRuby syntax for the following:

  - (void)captureOutput:(QTCaptureFileOutput *)captureOutput 
    didFinishRecordingToOutputFileAtURL:(NSURL *)outputFileURL 
    forConnections:(NSArray *)connections 
    dueToError:(NSError *)error

I'd be very grateful if someone could point me in the right direction. Thanks