tell user via extra TPaveLabel how to exit this app.

git-svn-id: http://root.cern.ch/svn/root/trunk@4536 27541ba8-7e3a-0410-8455-c3a389f83636

test/hworld.cxx

-// @(#)root/test:$Name:  $:$Id: hworld.cxx,v 1.3 2001/03/14 08:03:36 brun Exp $
+// @(#)root/test:$Name:  $:$Id: hworld.cxx,v 1.4 2001/04/20 17:56:50 rdm Exp $
 // Author: Fons Rademakers   04/04/97
 
 // This small demo shows the traditional "Hello World". Its main use is
@@ -18,6 +18,8 @@ int main(int argc, char **argv)
 
    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();
 
    // Enter event loop, one can now interact with the objects in
@@ -27,6 +29,7 @@ int main(int argc, char **argv)
 
    TLine *l = new TLine(0.1,0.2,0.5,0.9);
    l->Draw();
+   quit->SetLabel("Select File/Quit again to exit app");
    c->Update();
 
    // Here we don't return from the eventloop. "Exit ROOT" will quit the app.