[Gate-users] Nentries is always zero

[lupa euy]

hi everyone, 

I terrible need your help.. I am not sure whether this is the correct mailist.. 
in regard to my root file.. 


I have tried to read my root file, trying to convert it to either histogram or listmode file.. 

Everytime I tried to read it, I couldnot get the number of entries.. Number of entries always 0 (ZERO)

below some part of the program (just cut it since too long)






Int_t FromRoot2List(char *filename)
{
  Int_tnentries;
  Int_tnbytes = 0;
  Int_tentry;
  UInt_t etime;


  TFile f(filename);
   TTree *Coincidences = (TTree*)gDirectory->Get("Coincidences");
   nentries = (Int_t) Coincidences->GetEntries();
 



when I print out the number of entries (nentries) is always zero..  therefore, it wont go to the next step
the file name shows the correct filename.. 

this is my configuration 


THe version of geant is 9.4.p01
CLHEP 2.1.0.1
root 5.28
lmf 3.0


Waiting forward for your reply

regards