windowsCameraCapture.js

function cameraCapture() {
  if(typeof Windows != 'undefined') {
   var captureUI = new Windows.Media.Capture.CameraCaptureUI();
   //Set the format of the picture that's going to be captured (.png, .jpg, ...)
   captureUI.photoSettings.format = Windows.Media.Capture.CameraCaptureUIPhotoFormat.png;
   //Pop up the camera UI to take a picture
   captureUI.captureFileAsync(Windows.Media.Capture.CameraCaptureUIMode.photo).then(function (capturedItem) {
      // Do something with the picture
   });
  }
}