$webcam = Webcam::getDefault();

$webcamList = Webcam::getWebcams();

$webcam = Webcam::getDefault();
$webcam->open();
$image = $webcam->getImage();
$image->save('screenshot.png');

$webcam = Webcam::getDefault();
$webcam->open();
$webcamView = new UXWebcamView();
$webcamView->webcam = $webcam;
$webcamView->size = [640, 480];
$form->add($webcamView);
$webcamView->play();