#include "TH1.h"
#include "TCanvas.h"
#include "TF1.h"

#include <iostream>

using namespace std;

void drawcloneexfixed()
{


  TH1F* hOne = new TH1F("hist1","hist1",40,-10,10);
  TH1F* hTwo = new TH1F("hist2","hist2",40,-10,10);

  // =====  work on canvas 1.... ===========

  TCanvas* c1 = new TCanvas("canvas1","canvas1");
  hOne->FillRandom("pol0");
  hOne->Draw();

  // ... do stuff;

  c1->Modified();c1->Update(); //line not required

  // ===== work on canvas 2.... ============

  TCanvas* c2 = new TCanvas("canvas2","canvas2");
  hTwo->FillRandom("gaus");
  hTwo->Fit( "gaus", "MIL", "", -10,0 );
  c2->Modified();c2->Update();  //line not required

  //  if ( debug )
  //    {
      TF1* gf = hTwo->GetFunction("gaus");
      gf->DrawClone("same");   // !!!!!!!!! <- Draws on canvas 1 !?!!!
  //    }

  // ... do more stuff;
 
}