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Assembly: Microsoft.Office.Interop.UccApi (in microsoft.office.interop.uccapi.dll)
A preferred device is one selected by a user or the default device determined by the UCC API according to a certain device selection algorithm. The IUccMediaDeviceSettings interface allows an application to read or write the device settings to or from the Windows registry.
Win32 COM/C++ Syntax
interface IUccMediaDeviceSettings : IUnknown