private void OnActivate(IDeviceInfo moniker)
{
activeDevice = moniker as MfDevice;
var format = string.Empty;
var hr = camProcess.SetDevice(activeDevice, ref format);
if (!string.IsNullOrEmpty(format))
{
eventAggregator.GetEvent <NoticeFormatEvent>().Publish(format);
}
MFError.ThrowExceptionForHR(hr);
}
