Hi Jon, I did not see your original mail. However, I am suspecting you are trying to create your own main interactive program. See the Root example itself in $ROOTSYS/src/MAIN_rmain.cxx If you do not have teh Root source, here are the few lines you need: int main(int argc, char **argv) { TRint *theApp = new TRint("Rint", &argc, argv, 0, 0); // Init Intrinsics, build all windows, and enter event loop theApp->Run(); return(0); } You can also look at $ROOTSYS/test/Hworld.cxx Rene Brun Jon Gans wrote: > > Yes, I am replying to myself! > Thanks from a tip from Charles Maguire across the ring at PHENIX I leaned > I needed the line: > > TROOT simple("simple", "Example of creation of a tree"); > as the first line of the main() function. > > It works! it compiles! and sorta even runs. H > > owever, my TControlBar doesn't pop up, nor do any canvases or anything. > Just the constructor and destructor. > > Do I have to change my CINT code so the GIU stuff works? I have > TControlBar TCanvas, and tons of histograms. > > thanks alot > jon
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