Create a canvas and save as png.
Author: Valeriy Onuchin
This notebook tutorial was automatically generated with ROOTBOOK-izer from the macro found in the ROOT repository on Wednesday, April 17, 2024 at 11:13 AM.
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");
Draw all canvases
gROOT->GetListOfCanvases()->Draw()