#ifndef __CINT__
#include "TCanvas.h"
#include "TLine.h"
#include "TBox.h"
#endif

void demo()
{
  TCanvas* c1 = new TCanvas("c1", "" , 20,20,700,900);

  if (1) {
    TLine* p = new TLine(0.,0.,1.,1.);
    p->Draw();
  }

  if (1) {
    TBox* p = new TBox(0.4,0.4,0.6,0.6);
    p->Draw();
  }

  c1->Update();
}