protected unsafe void EnableActionBrowseRecordSchedules()
        {
            iCallbackBrowseRecordSchedules = new CallbackBrowseRecordSchedules(DoBrowseRecordSchedules);
            IntPtr ptr = GCHandle.ToIntPtr(iGch);

            DvServiceUpnpOrgScheduledRecording2EnableActionBrowseRecordSchedules(iHandle, iCallbackBrowseRecordSchedules, ptr);
        }
 static extern void DvServiceUpnpOrgScheduledRecording2EnableActionBrowseRecordSchedules(uint aHandle, CallbackBrowseRecordSchedules aCallback, IntPtr aPtr);