/// \file /// \ingroup tutorial_image /// \notebook /// Create a canvas and save as png. /// /// \macro_image /// \macro_code /// /// \author Valeriy Onuchin void pad2png() { TCanvas *c = new TCanvas; TH1F *h = new TH1F("gaus", "gaus", 100, -5, 5); h->FillRandom("gaus", 10000); h->Draw(); gSystem->ProcessEvents(); TImage *img = TImage::Create(); img->FromPad(c); img->WriteImage("canvas.png"); }