protected unsafe void EnableActionGetMediaInfo_Ext()
{
iCallbackGetMediaInfo_Ext = new CallbackGetMediaInfo_Ext(DoGetMediaInfo_Ext);
IntPtr ptr = GCHandle.ToIntPtr(iGch);
DvServiceUpnpOrgAVTransport2EnableActionGetMediaInfo_Ext(iHandle, iCallbackGetMediaInfo_Ext, ptr);
}
static extern void DvServiceUpnpOrgAVTransport2EnableActionGetMediaInfo_Ext(uint aHandle, CallbackGetMediaInfo_Ext aCallback, IntPtr aPtr);