SelectedFamilyName Example for C++ 5.0 and later
ILEADRasterTwain * pltRasTwain;
CString csBuffer;
csBuffer.Format(TEXT("Source Name = %s\nProduct Family Name = %s\nManufacturer Name = %d\n"),
(TCHAR *)pltRasTwain->GetSelectedSourceName(),
(TCHAR *)pltRasTwain->GetSelectedFamilyName(),
(TCHAR *)pltRasTwain->GetSelectedManufacturerName());
MessageBox(csBuffer, TEXT("Selected Source Info."));