Hi Ole, You can see the list of all classes used in a TFile (typically a TTree) with TFile::ShowStreamerInfo You can see the top level class of a branch via TBranchElement::GetClassName. Currently, there is no API to see all the classes in a Tree or branch. Note that the complete list of classes for a Tree or branch may only be known at run time after the last TTree::Fill. Rene Brun On Wed, 11 Sep 2002, Ole Streicher wrote: > Hi! > > How can I get the information (name, version) about what class(es) is (are) > stored in a ROOT tree or branch? > > Ole > >
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