Problem 530

i want to collect information about the total energy deposit in one event which
is the sum of all the hit of this event. So i use the method digitize() of the
class G4VDigitizerModule. Here found what i made:
PuitsDigitizer::PuitsDigitizer(const G4String& name)
:G4VDigitizerModule(name)
{
G4cout << "essai1" << G4endl;
}

PuitsDigitizer::~PuitsDigitizer()
{
G4cout << "essai2" << G4endl;
}

void PuitsDigitizer::Digitize()
{
G4cout << "essai3" << G4endl;
G4DigiManager* fDM = G4DigiManager::GetDMpionter();
G4int myHitsCollID = fDM->GetHitsCollectionID("hits_collection_name");
PuitsGeHitsCollection* HC = fDM->GetHitsCollection(myHitsCollID);
G4int n_hit = 0;
G4double totE=9, totL=0;
PuitsGeDigiCollection* digiCollection = 0;
n_hit = HC->entries();
for (G4int i=0;i<n_hit;i++)
{
totE += (*HC) [i]->GetEdep();
totL += (*HC) [i]->GetTrackL();
G4cout << "essai5" << G4endl;
}
PuitsGeDigi* newDigi = new PuitsGeDigi();
digiCollection->insert(newDigi);
newDigi->Print();
G4cout << "essai6 << G4endl;
if (digiCollection) StoreDigiCollection(digiCollection);
if (verboseLevel==0){
G4cout
  << " Germanium total energy deposit " << G4BestUnit(totE,"Energy");
  << G4endl;
G4int NbDigi = digiCollection->entries();
for (G4int i=0,i<NbDigi,i++) (*digiCollection) [i] ->Print();
}
}
I can compile and run the program but when i have access to the digicollection
it return no digits. Moreover when i run i should view all the message essai1,
essai2... and i see none.
So I suupose that the class I derived don't work anymore but idon't know why
(this class is included in PuitsEventAction.cc where I took the value of digits)
Thank you for your help.
Best regards,
Fabien