doc/v612/text_8cxx.html

/*************************************************************************
 * Copyright (C) 1995-2015, Rene Brun and Fons Rademakers.               *
 * All rights reserved.                                                  *
 *                                                                       *
 * For the licensing terms see $ROOTSYS/LICENSE.                         *
 * For the list of contributors see $ROOTSYS/README/CREDITS.             *
 *************************************************************************/
R__LOAD_LIBRARY(libGpad);
// #include "ROOT/TFile.hxx"
#include "ROOT/TCanvas.hxx"
#include "ROOT/TColor.hxx"
#include "ROOT/TText.hxx"
#include "ROOT/TDirectory.hxx"
void text()
{
   using namespace ROOT;
   // Create a canvas to be displayed.
   auto canvas = Experimental::TCanvas::Create("Canvas Title");
  auto text = std::make_shared<ROOT::Experimental::TText>("Hello World");
  canvas->Draw(text).SetFillColor(Experimental::TColor::kRed);
  // Register the text with ROOT: now it lives even after draw() ends.
  Experimental::TDirectory::Heap().Add("text", text);
  canvas->Show();
  // TFile *f = TFile::Open("canv7.root", "recreate");
  // f->WriteObject(canvas.get(), "canv_text");
  // delete f;
}