AVCamBarcode.CameraViewController.ZoomCamera C# (CSharp) Method

		void ZoomCamera (UISlider slider)
		{
			var device = videoDeviceInput.Device;

			NSError err;
			videoDeviceInput.Device.LockForConfiguration (out err);
			if (err != null) {
				Console.WriteLine ($"Could not lock for configuration: {err}");
				return;
			}

			device.VideoZoomFactor = slider.Value;
			device.UnlockForConfiguration ();
		}