Hi Peter, have a look at: http://root.cern.ch/root/Using.html and the link at the bottom of that page. In short you have to run rootcint to generate the dictionary and the missing functions. Cheers, Fons. Peter H Fisher wrote: > > Hi, > > Where are the usages of ClassImp and ClassDef documented? I am trying to > use my own class and I have included ClassDef and ClassImp as shown in the > Event.cxx and Event.h examples, but I keep getting > > MyEvent::ShowMembers(TMemberInspector&, char*) > MyEvent::Streamer(TBuffer&) > MyEvent::Class_Name(void) > make: *** [treefill] Error 1 > > My .C and .h files are appended below. > > Peter > > MyEvent.h: > > #ifndef ROOT_MyEvent > #define ROOT_MyEvent > > #include "TObject.h" > #include "TClonesArray.h" > #include "TH1.h" > #include "TMath.h" > > #include <iostream.h> > > class TDirectory; > > class MyEvent : public TObject { > > public: > MyEvent(); // Create > MyEvent(Int_t run, Int_t event, Int_t nhit); // Load header > Int_t Run(); > Int_t Event(); > Int_t Nhit(); > void Dump(); > > ClassDef(MyEvent,0) > > private: > Int_t the_run; > Int_t the_event; > Int_t the_nhit; > }; > #endif > > MyEvent.C: > > // > // Mthods for MyEvent > // > #include "TROOT.h" > #include "TFile.h" > #include "TH1.h" > #include "TH2.h" > #include <iostream.h> > #include "MyEvent.h" > > ClassImp(MyEvent) > > MyEvent::MyEvent(){ > } > > MyEvent::MyEvent(Int_t run, Int_t event, Int_t nhit){ > the_run=run; > the_event=event; > the_nhit=nhit; > } > > Int_t MyEvent::Run(){ > return the_run; > } > > Int_t MyEvent::Event(){ > return the_event; > } > > Int_t MyEvent::Nhit(){ > return the_nhit; > } > > void MyEvent::Dump(){ > printf("Dump of this event\n"); > printf("Run %d Event %d\n",the_run,the_event); > printf("Tracker hits %d\n",the_nhit); > } > > Peter Fisher Office 617-253-8561 > Associate Professor of Physics Fax 617-253-4100 > 44-118 MIT email fisherp@mit.edu > Cambridge, MA, 02139 -- Org: CERN, European Laboratory for Particle Physics. Mail: 1211 Geneve 23, Switzerland E-Mail: Fons.Rademakers@cern.ch Phone: +41 22 7679248 WWW: http://root.cern.ch/~rdm/ Fax: +41 22 7677910
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