Index

• ColorStruct_t ......................
• Event_t ............................
• GCValues_t .........................
• Grid_Result_t ......................
• PictureAttributes_t ................
• Point_t ............................
• Rectangle_t ........................
• Segment_t ..........................
• SetWindowAttributes_t ..............
• TApplication ....................... GUI application singleton
• TApplicationImp .................... ABC describing application protocol
• TArc ............................... Arc of a circle
• TArray ............................. Abstract array base class
• TArrayC ............................ Array of chars
• TArrayD ............................ Array of doubles
• TArrayF ............................ Array of floats
• TArrayI ............................ Array of ints
• TArrayL ............................ Array of longs
• TArrayS ............................ Array of shorts
• TArrow ............................. An arrow (line with a arrowhead)
• TAtt3D ............................. 3D attributes
• TAttAxis ........................... Axis attributes
• TAttCanvas ......................... Canvas attributes
• TAttFill ........................... Fill area attributes
• TAttFillCanvas ..................... A specialized dialog canvas to set fill attributes.
• TAttImage .......................... Image attributes
• TAttLine ........................... Line attributes
• TAttLineCanvas ..................... A specialized dialog canvas to set line attributes.
• TAttMarker ......................... Marker attributes
• TAttMarkerCanvas ................... A specialized dialog canvas to set marker attributes.
• TAttPad ............................ Pad attributes
• TAttText ........................... Text attributes
• TAttTextCanvas ..................... A specialized dialog canvas to set text attributes.
• TAuthenticate ...................... Class providing remote authentication service
• TAxis .............................. Axis class
• TAxis3D ............................ 3-D ruler painting class
• TBaseClass ......................... Description of a base class
• TBasket ............................ the TBranch buffers
• TBenchmark ......................... ROOT utility to help benchmarking applications
• TBits .............................. Bit container
• TBox ............................... Box class
• TBranch ............................ Branch descriptor
• TBranchClones ...................... Branch in case of an array of clone objects
• TBranchElement ..................... Branch in case of an object
• TBranchObject ...................... Branch in case of an object
• TBRIK .............................. TBRIK shape
• TBrowser ........................... ROOT Object Browser
• TBrowserImp ........................ ABC describing browser implementation protocol
• TBtree ............................. A B-tree
• TBtreeIter ......................... B-tree iterator
• TBuffer ............................ Buffer base class used for serializing objects
• TButton ............................ A user interface button.
• TCache ............................. Page cache used for remote I/O
• TCanvas ............................ Graphics canvas
• TCanvasImp ......................... ABC describing main window protocol
• TChain ............................. A chain of TTrees
• TChainElement ...................... A chain element
• TCint .............................. Interface to CINT C/C++ interpreter
• TClass ............................. Dictionary containing class information
• TClassGenerator .................... interface for TClass generators
• TClassMenuItem ..................... One element of the class context menu
• TClassRef .......................... persistent TClass reference
• TClassTable ........................ Table of known classes
• TClassTree ......................... Manager class to draw classes inheritance tree and relations
• TClonesArray ....................... An array of clone objects
• TCollection ........................ Collection abstract base class
• TColor ............................. Color defined by RGB or HLS
• TComplex ........................... Complex Class
• TCONE .............................. CONE shape
• TConfidenceLevel ................... output for TLimit functions
• TCONS .............................. CONS shape
• TContextMenu ....................... Context sensitive popup menu
• TContextMenuImp .................... Context sensitive popup menu implementation
• TControlBar ........................ Control bar
• TControlBarButton .................. The Control bar button
• TControlBarImp ..................... GUI independent controlbar abc
• TCrown ............................. A crown or segment of crown
• TCTUB .............................. The Cut Tube shape
• TCurlyArc .......................... A curly arc
• TCurlyLine ......................... A curly polyline
• TCut ............................... A specialized string object used for TTree selections
• TCutG .............................. A Graphical cut.
• TDataMember ........................ Dictionary for a class data member
• TDataType .......................... Basic data type descriptor
• TDatime ............................ Date and time 950130 124559
• TDecompBase ........................ Matrix Decompositition Base
• TDecompChol ........................ Matrix Decompositition Cholesky
• TDecompLU .......................... Matrix Decompositition LU
• TDecompQRH ......................... Matrix Decompositition QRH
• TDecompSparse ...................... Matrix Decompositition LU
• TDecompSVD ......................... Matrix Decompositition SVD
• TDialogCanvas ...................... A specialized canvas to set attributes.
• TDiamond ........................... Diamond class
• TDictionary ........................ ABC defining interface to dictionary
• TDirectory ......................... Describe directory structure in memory
• TDrawPanelHist ..................... Class used to control histogram drawing options
• TDSet .............................. Data set for remote processing (PROOF)
• TDSetElement ....................... A TDSet element
• TDSetElementMsn .................... Describing the files to be processed in a mass storage system
• TDSetElementPfn .................... Describing physical locations of LFNs
• TEllipse ........................... An ellipse
• TELTU .............................. ELTU shape
• TEnv ............................... Handle ROOT configuration resources
• TEventList ......................... A list of selected entries in a TTree.
• TExec .............................. To execute a CINT command
• TExMap ............................. Map with external hash
• TExMapIter ......................... TExMap iterator
• TF1 ................................ The Parametric 1-D function
• TF12 ............................... Projection of a TF2 along x or y
• TF2 ................................ The Parametric 2-D function
• TF3 ................................ The Parametric 3-D function
• TFeldmanCousins ....................
• TFile .............................. ROOT file
• TFileHandler ....................... Handles events on file descriptors
• TFitPanel .......................... Class used to control histograms fit panel
• TFitPanelGraph ..................... Class used to control graphs fit panel
• TFitter ............................ The ROOT standard fitter based on TMinuit
• TFolder ............................ Describe a folder: a list of objects and folders
• TFormula ........................... The formula base class f(x,y,z,par)
• TFractionFitter .................... Fits MC fractions to data histogram
• TFrame ............................. Pad graphics frame
• TFree .............................. Description of free segments on a file
• TFriendElement ..................... A friend element of another TTree
• TFTP ............................... File Transfer Protocol class using rootd
• TFunction .......................... Dictionary for global function
• TGaxis ............................. Graphics axis
• TGenPhaseSpace ..................... Simple Phase Space Generator
• TGeometry .......................... Structure for Matrices, Shapes and Nodes
• TGlobal ............................ Global variable class
• TGLViewerImp ....................... ROOT OpenGL viewer implementation
• TGraph ............................. Graph graphics class
• TGraph2D ........................... Set of n x[i],y[i],z[i] points with 3-d graphics including Delaunay triangulation
• TGraph2DErrors ..................... A 2D graph with error bars
• TGraphAsymmErrors .................. A graph with asymmetric error bars
• TGraphBentErrors ................... A graph with bent, asymmetric error bars
• TGraphDelaunay ..................... Delaunay triangulation
• TGraphErrors ....................... A graph with error bars
• TGraphSmooth ....................... Graph Smoother
• TGrid .............................. ABC defining interface to GRID services
• TGridProof ......................... ABC defining interface to GRID proof services
• TGridResult ........................ ABC defining interface to GRID query result
• TGroupButton ....................... A user interface button in a group of buttons.
• TGTRA .............................. GTRA shape
• TGuiFactory ........................ Abstract factory for GUI components
• TH1 ................................ 1-Dim histogram base class
• TH1C ............................... 1-Dim histograms (one char per channel)
• TH1D ............................... 1-Dim histograms (one double per channel)
• TH1F ............................... 1-Dim histograms (one float per channel)
• TH1I ............................... 1-Dim histograms (one 32 bits integer per channel)
• TH1K ............................... 1-Dim Nearest Kth neighbour method
• TH1S ............................... 1-Dim histograms (one short per channel)
• TH2 ................................ 2-Dim histogram base class
• TH2C ............................... 2-Dim histograms (one char per channel)
• TH2D ............................... 2-Dim histograms (one double per channel)
• TH2F ............................... 2-Dim histograms (one float per channel)
• TH2I ............................... 2-Dim histograms (one 32 bits integer per channel)
• TH2S ............................... 2-Dim histograms (one short per channel)
• TH3 ................................ 3-Dim histogram base class
• TH3C ............................... 3-Dim histograms (one char per channel)
• TH3D ............................... 3-Dim histograms (one double per channel)
• TH3F ............................... 3-Dim histograms (one float per channel)
• TH3I ............................... 3-Dim histograms (one 32 bits integer per channel)
• TH3S ............................... 3-Dim histograms (one short per channel)
• THaarMatrixD ....................... Haar matrix with double precision
• THaarMatrixF ....................... Haar matrix with single precision
• THashList .......................... Doubly linked list with hashtable for lookup
• THashTable ......................... A hash table
• THashTableIter ..................... Hash table iterator
• THelix ............................. A Helix drawn as a PolyLine3D
• THilbertMatrixD .................... (no_rows x no_cols) Hilbert matrix with double precision
• THilbertMatrixDSym ................. (no_rows x no_rows) Hilbert matrix with double precision
• THilbertMatrixF .................... (no_rows x no_cols) Hilbert matrix with single precision
• THilbertMatrixFSym ................. (no_rows x no_rows) Hilbert matrix with single precision
• THLimitsFinder ..................... Class to find best axis limits
• THostAuth .......................... Class providing host specific authentication information
• THStack ............................ A collection of histograms
• THtml .............................. Convert class(es) into HTML file(s)
• THtml::TDocElement .................
• THtml::TLocalType .................. additional types found while parsing
• THtml::TParseStack .................
• THtml::TParseStack::TParseElement ..
• THYPE .............................. HYPE shape
• TImage ............................. Abstract image class
• TImagePalette ...................... Color Palette for value -> color conversion
• timespec ...........................
• TInetAddress ....................... Represents an Internet Protocol (IP) address
• TInspectCanvas ..................... The canvas Inspector
• TInspectorImp ...................... GUI independent inspector abc
• TInterpreter ....................... ABC defining interface to generic interpreter
• TIter .............................. Iterator wrapper
• TIterator .......................... Iterator abstract base class
• TKey ............................... Header description of a logical record on file
• TKeyMapFile ........................ Utility class for browsing TMapFile objects.
• TLatex ............................. The Latex-style text processor class
• TLeaf .............................. Leaf: description of a Branch data type
• TLeafB ............................. A TLeaf for an 8 bit Integer data type.
• TLeafC ............................. A TLeaf for a variable length string.
• TLeafD ............................. A TLeaf for a 64 bit floating point data type.
• TLeafElement ....................... A TLeaf for a general object derived from TObject.
• TLeafF ............................. A TLeaf for a 32 bit floating point data type.
• TLeafI ............................. A TLeaf for an Integer data type.
• TLeafL ............................. A TLeaf for a 64 bit Integer data type.
• TLeafObject ........................ A TLeaf for a general object derived from TObject.
• TLeafS ............................. A TLeaf for a 16 bit Integer data type.
• TLegend ............................ Legend of markers/lines/boxes to represent obj's
• TLegendEntry ....................... Storage class for one entry of a TLegend
• TLimit ............................. Class to compute 95% CL limits
• TLimitDataSource ................... input for TLimit routines
• TLine .............................. A line segment
• TLink .............................. Link: hypertext link to an object
• TList .............................. Doubly linked list
• TListIter .......................... Linked list iterator
• TLockGuard ......................... Exception safe locking/unlocking of mutex
• TLorentzRotation ................... Lorentz transformations including boosts and rotations
• TLorentzVector ..................... A four vector with (-,-,-,+) metric
• TMap ............................... A (key,value) map
• TMapFile ........................... Memory mapped directory structure
• TMapIter ........................... Map iterator
• TMapRec ............................
• TMarker ............................ Marker
• TMarker3DBox ....................... A special 3-D marker designed for event display
• TMaterial .......................... Materials used in the Geometry Shapes
• TMath .............................. Interface to math routines
• TMatrix ............................ Matrix class (single precision)
• TMatrixColumn ...................... One column of a matrix (single precision)
• TMatrixD ........................... Matrix class (double precision)
• TMatrixDBase ....................... Matrix base class (double precision)
• TMatrixDColumn ..................... One column of a matrix (double precision)
• TMatrixDColumn_const ............... One column of a matrix (double precision)
• TMatrixDDiag ....................... Diagonal of a matrix (double precision)
• TMatrixDDiag_const ................. Diagonal of a matrix (double precision)
• TMatrixDEigen ...................... Eigen-Vectors/Values of a Matrix
• TMatrixDFlat ....................... Flat representation of a matrix
• TMatrixDFlat_const ................. Flat representation of a matrix
• TMatrixDiag ........................ Diagonal of a matrix (single precision)
• TMatrixDLazy ....................... Lazy matrix with double precision
• TMatrixDRow ........................ One row of a matrix (double precision)
• TMatrixDRow_const .................. One row of a matrix (double precision)
• TMatrixDSparse ..................... Sparse Matrix class (double precision)
• TMatrixDSparseRow .................. One row of a matrix (double precision)
• TMatrixDSparseRow_const ............ One row of a sparse matrix (double precision)
• TMatrixDSym ........................ Symmetric Matrix class (double precision)
• TMatrixDSymEigen ................... Eigen-Vectors/Values of a Matrix
• TMatrixDSymLazy .................... Lazy symmeytric matrix with double precision
• TMatrixF ........................... Matrix class (single precision)
• TMatrixFBase ....................... Dense Matrix base class (single precision)
• TMatrixFColumn ..................... One column of a matrix (single precision)
• TMatrixFColumn_const ............... One column of a matrix (single precision)
• TMatrixFDiag ....................... Diagonal of a matrix (single precision)
• TMatrixFDiag_const ................. Diagonal of a matrix (single precision)
• TMatrixFFlat ....................... Flat representation of a matrix
• TMatrixFFlat_const ................. Flat representation of a matrix
• TMatrixFlat ........................ Flat representation of a matrix
• TMatrixFLazy ....................... Lazy matrix with single precision
• TMatrixFRow ........................ One row of a matrix (single precision)
• TMatrixFRow_const .................. One row of a matrix (single precision)
• TMatrixFSym ........................ Symmetric Matrix class (single precision)
• TMatrixFSymLazy .................... Lazy symmeytric matrix with single precision
• TMatrixLazy ........................ Lazy matrix with single precision
• TMatrixRow ......................... One row of a matrix (single precision)
• TMBBCETagger ....................... thumbnail data of muon bc jet id tagger
• TMBBCImpTagger ..................... thumbnail data of muon bc jet id tagger
• TMBBCJet ........................... jet with bc jet id data
• TMBBCLikeTagger .................... thumbnail data of muon bc jet id tagger
• TMBBCMuTagger ...................... thumbnail data of muon bc jet id tagger
• TMBBCNNTagger ...................... thumbnail data of muon bc jet id tagger
• TMBBCTagger ........................ ABC BID tagger
• TMBBCVertexTagger .................. thumbnail data of muon bc jet id tagger
• TMBCalQual .........................
• TMBCps ............................. TMBTree Trks class
• TMBEmCells ......................... TMBTree EmCells class
• TMBEmcl ............................ TMBTree Emcl class
• TMBFps ............................. TMBTree Trks class
• TMBGlob ............................ TMBTree Glob class
• TMBHist ............................ TMBTreeHist class
• TMBIsoTrks ......................... TMBTree Trks class
• TMBJets ............................ TMBTree Jets class
• TMBL1CalTower ...................... TMBTreeTrig class
• TMBL1Muon .......................... TMBTreeL1Muon class
• TMBL2EM ............................ TMBTreeTrig class
• TMBL2Jet ........................... TMBTreeTrig class
• TMBL2Muon .......................... TMBTreeTrig class
• TMBL3PhysicsResult ................. TMBTreeTrig class
• TMBL3ToolResults ................... TMBTreeTrig class
• TMBLeBob ........................... TMBTree LeBob class
• TMBMCevtInfo ....................... TMBTree MCevt class
• TMBMCpart .......................... TMBTree MCpart class
• TMBMCvtx ........................... TMBTree Trks class
• TMBMet ............................. TMBTree Met class
• TMBMuon ............................ TMBTree Muon class
• TMBTaus ............................ TMBTree Taus class
• TMBTRefs ...........................
• TMBTrig ............................ TMBTreeTrig class
• TMBTrks ............................ TMBTree Trks class
• TMBVrts ............................ TMBTree Vrts class
• TMD5 ............................... MD5 cryptographic hash functions with a 128 bit output
• TMemberInspector ................... ABC for inspecting class data members
• TMessage ........................... Message buffer class
• TMessageHandler .................... Generic message handler
• TMethod ............................ Dictionary for a class member function (method)
• TMethodArg ......................... Dictionary for a method argument
• TMethodCall ........................ Method calling interface
• TMinuit ............................ The MINUIT minimisation package
• TMixture ........................... Mixtures used in the Geometry Shapes
• TMonitor ........................... Monitor activity on a set of TSocket objects
• TMultiDimFit ....................... Multi dimensional fit class
• TMultiGraph ........................ A collection of TGraph objects
• TNamed ............................. The basis for a named object (name, title)
• TNetFile ........................... A ROOT file that reads/writes via a rootd server
• TNode .............................. Description of parameters to position a 3-D geometry object
• TNodeDiv ........................... Description of parameters to divide a 3-D geometry object
• TNtuple ............................ A simple tree with branches of floats.
• TNtupleD ........................... A simple tree with branches of floats.
• TObjArray .......................... An array of objects
• TObjArrayIter ...................... Object array iterator
• TObject ............................ Basic ROOT object
• TObjectTable ....................... Table of active objects
• TObjString ......................... Collectable string class
• TOrdCollection ..................... An ordered collection
• TOrdCollectionIter ................. Ordered collection iterator
• TPad ............................... A Graphics pad
• TPadOpenGLView .....................
• TPadView3D .........................
• TPair ..............................
• TPaletteEditor ..................... Base class for palette editor
• TPARA .............................. PARA shape
• TPave .............................. Pave. A box with shadowing
• TPaveClass ......................... A TPaveLabel specialized for TClassTree objects
• TPaveLabel ......................... PaveLabel. A Pave with a label
• TPaveStats ......................... A special TPaveText to draw histogram statistics.
• TPavesText ......................... Stacked Paves with text strings
• TPaveText .......................... PaveText. A Pave with several lines of text.
• TPCON .............................. PCON shape
• TPDF ............................... PDF driver
• TPGON .............................. PGON shape
• TPhysObj ...........................
• TPluginHandler ..................... Handler for plugin libraries
• TPluginManager ..................... Manager for plugin handlers
• TPoint .............................
• TPoints ............................ 2-D graphics point
• TPoints3DABC ....................... A 3-D Points
• TPolyLine .......................... A PolyLine
• TPolyLine3D ........................ A 3-D polyline
• TPolyMarker ........................ An array of points with the same marker
• TPolyMarker3D ...................... An array of 3-D points with the same marker
• TPostScript ........................ PostScript driver
• TPrincipal ......................... Principal Components Analysis
• TProcessEventTimer ................. Process pending events at fixed time intervals
• TProcessID ......................... Process Unique Identifier in time and space
• TProcessUUID ....................... TProcessID managing UUIDs
• TProfile ........................... Profile histogram class
• TProfile2D ......................... Profile2D histogram class
• TPServerSocket ..................... Parallel server socket
• TPSocket ........................... Parallel client socket
• TQClass ............................ Class with connections
• TQCommand .......................... encapsulates the information for undo/redo a single action.
• TQConnection ....................... Internal class used in the object communication mechanism
• TQObject ........................... Base class for object communication mechanism
• TQObjSender ........................ Used to "delegate" TQObject functionality
• TQUndoManager ...................... recorder of operations for undo and redo
• TRandom ............................ Random number generators
• TRandom2 ........................... Random number generators with periodicity > 10**14
• TRandom3 ........................... Random number generator: Mersenne Twistor
• TRealData .......................... Description of persistent data members
• TRef ............................... Persistent Reference link to a TObject
• TRefArray .......................... An array of references to TObjects
• TRefArrayIter ...................... Object array iterator
• TRefCnt ............................
• TRegexp ............................ Regular expression class
• TRint .............................. ROOT Interactive Application Interface
• TRolke .............................
• TROOT .............................. Top level (or root) structure for all classes
• TRotation .......................... Rotations of TVector3 objects
• TRotMatrix ......................... Rotation Matrix for 3-D geometry objects
• TSecContext ........................ Class providing host specific authentication information
• TSecContextCleanup .................
• TSelector .......................... A utility class for tree and object processing
• TSelectorCint ...................... A utility class for tree and object processing (interpreted version)
• TSeqCollection ..................... Sequenceable collection ABC
• TServerSocket ...................... This class implements server sockets
• TShape ............................. Basic shape
• TSignalHandler ..................... Signal event handler
• TSlider ............................ A user interface slider.
• TSliderBox ......................... The moving box of a TSlider
• TSocket ............................ This class implements client sockets
• TSortedList ........................ A sorted list
• TSpectrum .......................... Peak Finder, background estimator, Deconvolution
• TSPHE .............................. SPHE shape
• TSpline ............................ Spline base class
• TSpline3 ........................... Class to create third natural splines
• TSpline5 ........................... Class to create quintic natural splines
• TSplinePoly ........................ Spline polynomial terms
• TSplinePoly3 ....................... Third spline polynomial terms
• TSplinePoly5 ....................... Quintic spline polynomial terms
• TSQLResult ......................... SQL query result
• TSQLRow ............................ One row of an SQL query result
• TSQLServer ......................... Connection to SQL server
• TStopwatch ......................... A stopwatch which times real and cpu time
• TStorage ........................... Storage manager class
• TStreamerBase ...................... Streamer element of type base class
• TStreamerBasicPointer .............. Streamer element for a pointer to a basic type
• TStreamerBasicType ................. Streamer element for a basic type
• TStreamerElement ................... Base class for one element (data member) to be Streamed
• TStreamerInfo ...................... Streamer information for one class version
• TStreamerLoop ...................... Streamer element for a pointer to an array of objects
• TStreamerObject .................... Streamer element of type object
• TStreamerObjectAny ................. Streamer element of type object other than TObject
• TStreamerObjectAnyPointer .......... Streamer element of type pointer to a non TObject
• TStreamerObjectPointer ............. Streamer element of type pointer to a TObject
• TStreamerSTL ....................... Streamer element of type STL container
• TStreamerSTLstring ................. Streamer element of type C++ string
• TStreamerString .................... Streamer element of type TString
• TString ............................ Basic string class
• TStringLong ........................ Long string class (more than 255 chars)
• TStyle ............................. A collection of all graphics attributes
• TSubString .........................
• TSVG ............................... SVG driver
• TSysEvtHandler ..................... ABC for handling system events
• TSystem ............................ ABC defining a generic interface to the OS
• TSystemDirectory ................... A system directory
• TSystemFile ........................ A system file
• TTabCom ............................ Perform comand line completion when hitting <TAB>
• TTask .............................. Base class for tasks
• TText .............................. Text
• TTF ................................ Interface to TTF font handling
• TTime .............................. Basic time type with milli second precision
• TTimer ............................. Handle timer event
• TTimeStamp ......................... Encapsulates seconds and ns since EPOCH
• TToggle ............................ Facility for toggling datamembers on/off
• TToggleGroup ....................... Group of contex-menu toggle objects
• TTRAP .............................. TRAP shape
• TTRD1 .............................. TRD1 shape
• TTRD2 .............................. TRD2 shape
• TTree .............................. Tree descriptor (the main ROOT I/O class)
• TTreeFriendLeafIter ................ Linked list iterator
• TTreeResult ........................ TTree query result
• TTreeRow ........................... One row of an TTree query result
• TTUBE .............................. TUBE shape
• TTUBS .............................. TUBS shape
• TUnixSystem ........................ Interface to Unix OS services
• TUrl ............................... Represents an URL
• TUtil3D ............................ The default 3-D view utility class
• TUtilHist .......................... misc. histogram utilities
• TUtilPad ........................... misc. pad/canvas utilities
• TUUID .............................. Universally Unique IDentifier
• TVector ............................ Vector class with single precision
• TVector2 ........................... A 2D physics vector
• TVector3 ........................... A 3D physics vector
• TVectorD ........................... Vector class with double precision
• TVectorF ........................... Vector class with single precision
• TView .............................. 3-D View
• TVirtualCollectionProxy ............
• TVirtualFitter ..................... Abstract interface for fitting
• TVirtualGL .........................
• TVirtualHistPainter ................ Abstract interface for histogram painters
• TVirtualMutex ...................... Virtual mutex lock class
• TVirtualPad ........................ Abstract base class for Pads and Canvases
• TVirtualPadEditor .................. Abstract interface for graphics pad editor
• TVirtualProof ...................... Abstract PROOF interface
• TVirtualPS ......................... Abstract interface to a PostScript driver
• TVirtualTreePlayer ................. Abstract interface for Tree players
• TVirtualUtil3D ..................... Abstract interface to a the 3-D view utility
• TVirtualUtilHist ................... Abstract interface to the histogram utilities
• TVirtualUtilPad .................... Abstract interface to the pad/canvas utilities
• TVirtualX .......................... ABC defining a generic interface to graphics system
• TWbox .............................. A window box (box with 3-D effects)
• TWebFile ........................... A ROOT file that reads via a http server
• TXTRU .............................. TXTRU shape
• UserGroup_t ........................
• vector<string> .....................
• WindowAttributes_t .................