Gets a value that declares whether the capture device is the default device for its type (audio or video).
Assembly: System.Windows (in System.Windows.dll)
If multiple devices are available, the user can select the device to use as part of the Windows Phone configuration dialog box (Webcam/Mic tab). In configuration UI, audio devices and video devices are listed separately, and each can have a default. If a device is unavailable in the Windows Phone configuration dialog box, no CaptureDevice instance represents it.