Converting histograms stored in root files to .png's

[amvargash]

List of all histograms in a file

First comment: In my installation I found loopdir.C at $ROOTSYS/tutorials/loopdir.C I am using 5.13/02. Second comment: I have a root file with a subdirectory which has many histograms which can be seen in TBrowser. I find that when I use the keys method I only get the key for the subdirectory. The keys to the histograms are never returned. It would seem that I need to set my directory to the subdirectory and then fetch the keys. I tried this with this code: TFile *f = new TFile(“T0C…