I'm aware of uniqueID and it's been helpful in differentiating capture devices of the same type. What I'm trying to figure out is whether an audio AVCaptureDevice and a video AVCaptureDevice are coming from the same piece of hardware. I found the documentation for linkedDevices and that sounds like exactly what I'm looking for, however, the array is always empty.

It wouldn't necessarily have to be the serial number. If there were a way to trace from an AVCaptureDevice back to a USB port, for example, then I could determine if two different AVCaptureDevices were connected via the same USB port, and therefore were coming from the same capture box.

Thank you for your reply. I don't know what makes a class specifically an Obj-C++ or Obj-C class. I know these two are defined with C++ class syntax (no @implementation or whatnot), but they do call methods on an Obj-C class. These two classes do exist in the same target, but the linker did not give me a warning. Thanks for the link to the video. This project predates Xcode 15, but I will keep this feature in mind next time I need to include a C++ library.

The new API has no effect. The tab bar is still visible after setting isTabBarHidden to true. Update: I had to wait for viewWillAppear to call it.

When do you call this? I tried this API and the tab bar is still visible. Update: I had to wait for viewWillAppear to call it.