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Fons Rademakers authored
git-svn-id: http://root.cern.ch/svn/root/trunk@19826 27541ba8-7e3a-0410-8455-c3a389f83636
Fons Rademakers authoredgit-svn-id: http://root.cern.ch/svn/root/trunk@19826 27541ba8-7e3a-0410-8455-c3a389f83636
hworld.cxx 783 B
// @(#)root/test:$Id$
// Author: Fons Rademakers 04/04/97
// This small demo shows the traditional "Hello World". Its main use is
// to show how to use ROOT graphics and how to enter the eventloop to
// be able to interact with the graphics.
#include "TApplication.h"
#include "TCanvas.h"
#include "TLine.h"
#include "TPaveLabel.h"
int main(int argc, char **argv)
{
TApplication theApp("App", &argc, argv);
TCanvas *c = new TCanvas("c", "The Hello Canvas", 400, 400);
c->Connect("Closed()", "TApplication", &theApp, "Terminate()");
TPaveLabel *hello = new TPaveLabel(0.2,0.4,0.8,0.6,"Hello World");
hello->Draw();
TPaveLabel *quit = new TPaveLabel(0.2,0.2,0.8,0.3,"Close via menu File/Quit");
quit->Draw();
c->Update();
theApp.Run();
return 0;
}