#include "TCanvas.h"
#include "Rtypes.h"
#include "TH1.h"
#include "TApplication.h"
#include "TSystem.h"
#include "TObjectTable.h"
#include <iostream>
using namespace std;
int main()
{
  TApplication theApp("App", 0,0);
  const UInt_t nloops = 2000;

  TCanvas* c1 = new TCanvas("c1","c1",800,600);
  for(size_t i=0;i<nloops;i++){
    TH1F* h1 = new TH1F("h1","h1",10,0,10);
    h1->Fill(1,5);
    h1->Fill(2,8);
    h1->SetBit(kCanDelete);    
    c1->Clear();
    h1->Draw();
    c1->Update();
    delete h1; h1 = 0;
    //h1->Delete();
    if(((i+1)%10)==0) {
      cout<<"i= "<<i+1<<endl;
      //gObjectTable->Print();
    }
  }
}