!include once #1013490 // sarxos webcam

static void selectWebCam_withPreferred(final VF1<Webcam> onSelect) {
  fL<Webcam> webcams = new L(Webcam.getWebcams());
  S preferred = trim(loadTextFile(preferredWebCamFile()));
  final Webcam cam = findWebCamByName(webcams, preferred);
  if (cam != null) awt { call(onSelect, cam) }
  else selectWebCam(webcams, voidfunc(Webcam cam) {
    saveTextFile(preferredWebCamFile(), cam.getName());
    callF(onSelect, cam);
  });
}