Do you think the process is the same for an in-built camera as it is for a usb camera?
Yes, the process causes the same kind of headache for a built-in camera vs an external USB camera. Here is the summary of taking pictures in VFP from my sensor session last year:
CameraCaptureUi - Only available in Windows Store Apps
MediaCapture - Crashes, probably due to driver issue
TWAIN - Complicated, hard to get drivers
Windows Image Aqcuisition - Kind of works, but low resolution and camera keeps disappearing
HTML 5 getUserMedia - Works in Edge and Chrome, but can‘t easily embed those
TWAIN is covered in the article from Mile Lewis, Windows Image Acquisition is the news2news solution that is also on the FoxPro wiki. Using the camera application gives much better pictures, but zero control over the image taking process and picture location.