SelectedFamilyName example for Delphi
procedure TForm1.Button3Click(Sender: TObject);
var
strBuffer: String;
begin
strBuffer:= 'Source Name = ' + LEADTwain1.SelectedSourceName + Chr(13) +
'Product Family Name = ' + LEADTwain1.SelectedFamilyName + Chr(13) +
'Manufacturer Name = ' + LEADTwain1.SelectedManufacturerName + Chr(13);
ShowMessage ( strBuffer );
end;