Dear Rene Thank you for clarifying this issue. Best regards Christian Rene Brun wrote: > Hi Christian, > > In your sub-directory mySubdir, > mySubdir->cd(); > you can write all the objects you want with: > obj1->Write(); > obj2->Write(); etc > mySubdir->Save(); //this will write all the keys > > addind a file->Flush guarantees that all system buffers are written to disk > > Rene Brun > > cstrato@EUnet.at wrote: > > > > Dear Rene > > > > Suppose I have a TFile with a number of directories and subdirectories, > > and I want to store some objects in a subdirectory: > > mySubDir->cd(); > > object1->Write(); > > object2->Write(); > > > > I would like to save these objects immediately to disc, without closing > > the TFile. Sorrowly, it is not quite clear to me when these objects are > > actually written to the subdirectory on the hard disc. > > Does method Write() write the objects to disc immediately, or do I have > > to call: > > mySubDir->SetModified(); > > mySubDir->Save(); > > or: > > mySubDir->SaveSelf(kTRUE); > > or: > > file->Flush(); > > > > Which of these methods would be preferrable? > > Do I have to use the same methods when I want to delete objects > > permanently from a subdirectory on hard disc? > > > > Thank you inadvance for your help. > > > > Best regards > > Christian > > ---------------------------------- > > C.h.r.i.s.t.i.a.n S.t.r.a.t.o.w.a > > V.i.e.n.n.a, A.u.s.t.r.i.a
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