----- Can you try to add the statement: gSystem->Load("Root_Tree"); and see whether it helps. If you want to disinguish whether you are running very Windows platform you can use gSystem->GetName() and check it you may try: root [0] gSystem->GetName() (Text_t* 0xa460b4)"WinNT" root [1] The best way is to load "root_tree.dll from within your custom "rootlogon.C" macro (see %ROOTSYS%\tutorials\rootlogon.C ) Valery > TFile *F = new TFile("buf.root","recreate"); > > TTree *T = new TTree("T","List of arrays"); > > TBranch *B = T->Branch("B",&buf,"s_buf[8192]/s"); > > for(i = 0; i < 100; ++i) > { > buf.s_buf[0] = i; > buf.s_buf[i] = i; > T->Fill(); > } > T->Write(); > F->Close(); > } > file://=== testr.cpp > #include <TROOT.h> > #include <TFile.h> > #include <TTree.h> > #include <stdio.h> > #include <stdlib.h> > > void main() > { > TROOT test("test","test to read file"); > int i,n; > struct > { > unsigned short s_buf[8192]; > } buf; > > TFile *F = new TFile("buf.root","read"); > > TTree *T = (TTree*)F->Get("T"); > > if(T == 0) > { > printf("ERROR TO OPEN TREE \n"); > exit(-1); > } > > T->SetBranchAddress("B",&buf); > > n = T->GetEntries(); > > printf("%i \n",n); > > F->Close(); > } > > > > -- > > > > ******************************************************* > * Andrei V. Daniel > * Department of Physics & Astronomy, P.O. Box 1807-B > * Vanderbilt University Tel: (615) 322 2646 > * Nashville, TN 37235, USA Fax: (615) 343 7263 > ******************************************************* >
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