void latexbutton()
{
   //Canvas 1 with Latex & Graph
   TCanvas *c = new TCanvas("canvas1", "Canvas1 (Latex and Graph)", 500,600);
   c->SetEditable(kTRUE);
   c->cd();
   
   TButton *b = new TButton("", "", 0.05, 0.05, 0.95, 0.95);
   b->SetEditable(kTRUE);
   b->Range(0,0,1,1);
   b->Draw();
   b->cd();

   Double_t x[4] = {0.1,0.2,0.3,0.4};
   Double_t y[4] = {0.9,0.4,0.5,0.3};
   TGraph *g = new TGraph(4, x, y);
   g->Draw();
   //g->Draw("SAME")  //Alternatively try this -> the graph is not visible, but the latex stays
   
   TLatex *lx = new TLatex();
   lx->SetTextSize(0.05);
   lx->DrawLatex(0.5, 0.5, "#bar{Text}");
   delete lx;
   
   //Canvas 2 with Latex
   TCanvas *c = new TCanvas("canvas2", "Canvas2 (Latex Only)", 500,600);
   c->SetEditable(kTRUE);
   c->cd();
   
   TButton *b = new TButton("", "", 0.05, 0.05, 0.95, 0.95);
   b->SetEditable(kTRUE);
   b->Range(0,0,1,1);
   b->Draw();
   b->cd();

   TLatex *lx = new TLatex();
   lx->SetTextSize(0.05);
   lx->DrawLatex(0.5, 0.5, "#bar{Text}");
   delete lx;
}