FamilyName Example for C++ 5.0 and later
ILEADRasterTwain * pltRasTwain;
CString csBuffer;
long lCount;
pltRasTwain->get_SourceCount (&lCount);
for (long n = 0 ; n < lCount ; n++)
{
csBuffer.Format(TEXT("Source Name = %s\nProduct Family Name = %s\nManufacturer Name = %d\n"),
(TCHAR *)pltRasTwain->GetSourceName(n),
(TCHAR *)pltRasTwain->GetFamilyName(n),
(TCHAR *)pltRasTwain->GetManufacturerName(n));
MessageBox(csBuffer, TEXT("Source Info."));
}