Here is the streamer information for TTree related classes in release 3.02.06: (For the explanation of the meaning of the type, see "fType" in Format of StreamerInfo record.)
---------------------------------------------------- StreamerInfo for class: TTree, version=6 BASE TNamed offset= 0 type=67 The basis for a named object (name, title) BASE TAttLine offset= 0 type= 0 Line attributes BASE TAttFill offset= 0 type= 0 Fill area attributes BASE TAttMarker offset= 0 type= 0 Marker attributes Stat_t fEntries offset= 0 type= 8 Number of entries Stat_t fTotBytes offset= 0 type= 8 Total number of bytes in all branches before compression Stat_t fZipBytes offset= 0 type= 8 Total number of bytes in all branches after compression Stat_t fSavedBytes offset= 0 type= 8 Number of autosaved bytes Int_t fTimerInterval offset= 0 type= 3 Timer interval in milliseconds Int_t fScanField offset= 0 type= 3 Number of runs before prompting in Scan Int_t fUpdate offset= 0 type= 3 Update frequency for EntryLoop Int_t fMaxEntryLoop offset= 0 type= 3 Maximum number of entries to process Int_t fMaxVirtualSize offset= 0 type= 3 Maximum total size of buffers kept in memory Int_t fAutoSave offset= 0 type= 3 Autosave tree when fAutoSave bytes produced Int_t fEstimate offset= 0 type= 3 Number of entries to estimate histogram limits TObjArray fBranches offset= 0 type=61 List of Branches TObjArray fLeaves offset= 0 type=61 Direct pointers to individual branch leaves TArrayD fIndexValues offset= 0 type=62 Sorted index values TArrayI fIndex offset= 0 type=62 Index of sorted values TList* fFriends offset= 0 type=64 pointer to list of friend elements StreamerInfo for class: TAttLine, version=1 Color_t fLineColor offset= 0 type= 2 line color Style_t fLineStyle offset= 0 type= 2 line style Width_t fLineWidth offset= 0 type= 2 line width StreamerInfo for class: TAttFill, version=1 Color_t fFillColor offset= 0 type= 2 fill area color Style_t fFillStyle offset= 0 type= 2 fill area style StreamerInfo for class: TAttMarker, version=1 Color_t fMarkerColor offset= 0 type= 2 Marker color index Style_t fMarkerStyle offset= 0 type= 2 Marker style Size_t fMarkerSize offset= 0 type= 5 Marker size StreamerInfo for class: TBranch, version=7 BASE TNamed offset= 0 type=67 The basis for a named object (name, title) Int_t fCompress offset= 0 type= 3 (=1 branch is compressed, 0 otherwise) Int_t fBasketSize offset= 0 type= 3 Initial Size of Basket Buffer Int_t fEntryOffsetLen offset= 0 type= 3 Initial Length of fEntryOffset table in the basket buffers Int_t fWriteBasket offset= 0 type= 3 Last basket number written Int_t fEntryNumber offset= 0 type= 3 Current entry number (last one filled in this branch) Int_t fOffset offset= 0 type= 3 Offset of this branch Int_t fMaxBaskets offset= 0 type= 6 Maximum number of Baskets so far Int_t fSplitLevel offset= 0 type= 3 Branch split level Stat_t fEntries offset= 0 type= 8 Number of entries Stat_t fTotBytes offset= 0 type= 8 Total number of bytes in all leaves before compression Stat_t fZipBytes offset= 0 type= 8 Total number of bytes in all leaves after compression TObjArray fBranches offset= 0 type=61 -> List of Branches of this branch TObjArray fLeaves offset= 0 type=61 -> List of leaves of this branch TObjArray fBaskets offset= 0 type=61 -> List of baskets of this branch Int_t* fBasketBytes offset= 0 type=43 [fMaxBaskets] Length of baskets on file Int_t* fBasketEntry offset= 0 type=43 [fMaxBaskets] Table of first entry in eack basket Seek_t* fBasketSeek offset= 0 type=43 [fMaxBaskets] Addresses of baskets on file TString fFileName offset= 0 type=65 Name of file where buffers are stored ("" if in same file as Tree header) StreamerInfo for class: TBranchElement, version=7 BASE TBranch offset= 0 type= 0 Branch descriptor TString fClassName offset= 0 type=65 Class name of referenced object TString fParentName offset= 0 type=65 Name of parent class TString fClonesName offset= 0 type=65 Name of class in TClonesArray (if any) Int_t fClassVersion offset= 0 type= 3 Version number of class Int_t fID offset= 0 type= 3 element serial number in fInfo Int_t fType offset= 0 type= 3 branch type Int_t fStreamerType offset= 0 type= 3 branch streamer type Int_t fMaximum offset= 0 type= 3 Maximum entries for a TClonesArray or variable array TBranchElement*fBranchCount offset= 0 type=64 pointer to primary branchcount branch TBranchElement*fBranchCount2 offset= 0 type=64 pointer to secondary branchcount branch StreamerInfo for class: TLeaf, version=2 BASE TNamed offset= 0 type=67 The basis for a named object (name, title) Int_t fLen offset= 0 type= 3 Number of fixed length elements Int_t fLenType offset= 0 type= 3 Number of bytes for this data type Int_t fOffset offset= 0 type= 3 Offset in ClonesArray object (if one) Bool_t fIsRange offset= 0 type=11 (=kTRUE if leaf has a range, kFALSE otherwise) Bool_t fIsUnsigned offset= 0 type=11 (=kTRUE if unsigned, kFALSE otherwise) TLeaf* fLeafCount offset= 0 type=64 Pointer to Leaf count if variable length StreamerInfo for class: TLeafElement, version=1 BASE TLeaf offset= 0 type= 0 Leaf: description of a Branch data type Int_t fID offset= 0 type= 3 element serial number in fInfo Int_t fType offset= 0 type= 3 leaf type
