ROOT top level object description.

The TROOT object is the entry point to the ROOT system. The single instance of TROOT is accessible via the global gROOT. Using the gROOT pointer one has access to basically every object created in a ROOT based program. The TROOT object is essentially a container of several lists pointing to the main ROOT objects.

The following lists are accessible from gROOT object:

gROOT->GetListOfClasses
gROOT->GetListOfColors
gROOT->GetListOfTypes
gROOT->GetListOfGlobals
gROOT->GetListOfGlobalFunctions
gROOT->GetListOfFiles
gROOT->GetListOfMappedFiles
gROOT->GetListOfSockets
gROOT->GetListOfSecContexts
gROOT->GetListOfCanvases
gROOT->GetListOfStyles
gROOT->GetListOfFunctions
gROOT->GetListOfSpecials (for example graphical cuts)
gROOT->GetListOfGeometries
gROOT->GetListOfBrowsers
gROOT->GetListOfCleanups
gROOT->GetListOfMessageHandlers

The TROOT class provides also many useful services:

Get pointer to an object in any of the lists above
Time utilities TROOT::Time

The ROOT object must be created as a static object. An example of a main program creating an interactive version is shown below:

Example of a main program

#include "TRint.h"
 
int main(int argc, char **argv)
{
   TRint *theApp = new TRint("ROOT example", &argc, argv);
 
   // Init Intrinsics, build all windows, and enter event loop
   theApp->Run();
 
   return(0);
}

Definition at line 94 of file TROOT.h.

Public Types
typedef std::vector< std::pair< std::string, int > >	FwdDeclArgsToKeepCollection_t

Public Types inherited from TObject
enum	{ kIsOnHeap = 0x01000000 , kNotDeleted = 0x02000000 , kZombie = 0x04000000 , kInconsistent = 0x08000000 , kBitMask = 0x00ffffff }

enum	{ kSingleKey = (1ULL << ( 0 )) , kOverwrite = (1ULL << ( 1 )) , kWriteDelete = (1ULL << ( 2 )) }

enum	EDeprecatedStatusBits { kObjInCanvas = (1ULL << ( 3 )) }

enum	EStatusBits { kCanDelete = (1ULL << ( 0 )) , kMustCleanup = (1ULL << ( 3 )) , kIsReferenced = (1ULL << ( 4 )) , kHasUUID = (1ULL << ( 5 )) , kCannotPick = (1ULL << ( 6 )) , kNoContextMenu = (1ULL << ( 8 )) , kInvalidObject = (1ULL << ( 13 )) }

Public Member Functions
	TROOT (const char name, const char title, VoidFuncPtr_t *initfunc=nullptr)
	Initialize the ROOT system.

virtual	~TROOT ()
	Clean up and free resources used by ROOT (files, network sockets, shared memory segments, etc.).

void	AddClass (TClass *cl)
	Add a class to the list and map of classes.

void	AddClassGenerator (TClassGenerator *gen)
	Add a class generator.

void	Append (TObject *obj, Bool_t replace=kFALSE) override
	Append object to this directory.

void	Browse (TBrowser *b) override
	Add browsable objects to TBrowser.

Bool_t	ClassSaved (TClass *cl)
	return class status 'ClassSaved' for class cl This function is called by the SavePrimitive functions writing the C++ code for an object.

void	CloseFiles ()
	Close any files and sockets that gROOT knows about.

void	EndOfProcessCleanups ()
	Execute the cleanups necessary at the end of the process, in particular those that must be executed before the library start being unloaded.

TObject *	FindObject (const char *name) const override
	Returns address of a ROOT object if it exists.

TObject *	FindObject (const TObject *obj) const override
	Find an object in one Root folder.

TObject *	FindObjectAny (const char *name) const override
	Return a pointer to the first object with name starting at //root.

TObject *	FindObjectAnyFile (const char *name) const override
	Scan the memory lists of all files for an object with name.

const char *	FindObjectClassName (const char *name) const
	Returns class name of a ROOT object including CINT globals.

const char *	FindObjectPathName (const TObject *obj) const
	Return path name of obj somewhere in the //root/... path.

TObject *	FindSpecialObject (const char name, void &where)
	Returns address and folder of a ROOT object if it exists.

TClass *	FindSTLClass (const char *name, Bool_t load, Bool_t silent=kFALSE) const
	return a TClass object corresponding to 'name' assuming it is an STL container.

void	ForceStyle (Bool_t force=kTRUE)

Bool_t	FromPopUp () const

TApplication *	GetApplication () const

Int_t	GetBuiltDate () const

Int_t	GetBuiltTime () const

TClass *	GetClass (const char *name, Bool_t load=kTRUE, Bool_t silent=kFALSE) const
	Return pointer to class with name. Obsolete, use TClass::GetClass directly.

TClass *	GetClass (const std::type_info &typeinfo, Bool_t load=kTRUE, Bool_t silent=kFALSE) const
	Return pointer to class from its name.

TSeqCollection *	GetClipboard () const

TColor *	GetColor (Int_t color) const
	Return address of color with index color.

const char *	GetConfigFeatures () const

const char *	GetConfigOptions () const

const char *	GetCutClassName () const

const char *	GetDefCanvasName () const

Bool_t	GetEditHistograms () const

Int_t	GetEditorMode () const

TFile *	GetFile () const override

TFile *	GetFile (const char *name) const
	Return pointer to file with name.

Bool_t	GetForceStyle () const

TObject *	GetFunction (const char *name) const
	Return pointer to function with name.

TFunctionTemplate *	GetFunctionTemplate (const char *name)

TObject *	GetGeometry (const char *name) const
	Return pointer to Geometry with name.

const char *	GetGitBranch () const

const char *	GetGitCommit () const

const char *	GetGitDate ()
	Return date/time make was run.

TGlobal *	GetGlobal (const char *name, Bool_t load=kFALSE) const
	Return pointer to global variable by name.

TGlobal *	GetGlobal (const TObject *obj, Bool_t load=kFALSE) const
	Return pointer to global variable with address addr.

TFunction *	GetGlobalFunction (const char name, const char params=nullptr, Bool_t load=kFALSE)
	Return pointer to global function by name.

TFunction *	GetGlobalFunctionWithPrototype (const char name, const char proto=nullptr, Bool_t load=kFALSE)
	Return pointer to global function by name.

TInterpreter *	GetInterpreter () const

TList *	GetListOfBrowsables () const

TSeqCollection *	GetListOfBrowsers () const

TSeqCollection *	GetListOfCanvases () const

TCollection *	GetListOfClasses () const

TCollection *	GetListOfClassGenerators () const

TSeqCollection *	GetListOfCleanups () const

TSeqCollection *	GetListOfClosedObjects () const

TSeqCollection *	GetListOfColors () const

TSeqCollection *	GetListOfDataSets () const

TCollection *	GetListOfEnums (Bool_t load=kFALSE)

TSeqCollection *	GetListOfFiles () const

TCollection *	GetListOfFunctionOverloads (const char *name) const
	Return the collection of functions named "name".

TCollection *	GetListOfFunctions () const

TCollection *	GetListOfFunctionTemplates ()

TSeqCollection *	GetListOfGeometries () const

TCollection *	GetListOfGlobalFunctions (Bool_t load=kFALSE)
	Return list containing the TFunctions currently defined.

TCollection *	GetListOfGlobals (Bool_t load=kFALSE)
	Return list containing the TGlobals currently defined.

TSeqCollection *	GetListOfMappedFiles () const

TSeqCollection *	GetListOfMessageHandlers () const

TSeqCollection *	GetListOfProofs () const

TSeqCollection *	GetListOfSecContexts () const

TSeqCollection *	GetListOfSockets () const

TSeqCollection *	GetListOfSpecials () const

TSeqCollection *	GetListOfStreamerInfo () const

TSeqCollection *	GetListOfStyles () const

TSeqCollection *	GetListOfTasks () const

TCollection *	GetListOfTypes (Bool_t load=kFALSE)
	Return a dynamic list giving access to all TDataTypes (typedefs) currently defined.

Int_t	GetNclasses () const
	Get number of classes.

Int_t	GetNtypes () const
	Get number of types.

TPluginManager *	GetPluginManager () const

TFolder *	GetRootFolder () const

TVirtualPad *	GetSelectedPad () const

const TObject *	GetSelectedPrimitive () const

TStyle *	GetStyle (const char *name) const
	Return pointer to style with name.

TDataType *	GetType (const char *name, Bool_t load=kFALSE) const
	Return pointer to type with name.

TProcessUUID *	GetUUIDs () const

const char *	GetVersion () const

Int_t	GetVersionCode () const

Int_t	GetVersionDate () const

Int_t	GetVersionInt () const

Int_t	GetVersionTime () const

const TString &	GetWebDisplay () const

void	Idle (UInt_t idleTimeInSec, const char *command=nullptr)
	Execute command when system has been idle for idleTimeInSec seconds.

Int_t	IgnoreInclude (const char fname, const char expandedfname)
	Return 1 if the name of the given include file corresponds to a class that is known to ROOT, e.g.

TClass *	IsA () const override

Bool_t	IsBatch () const

Bool_t	IsEscaped () const

Bool_t	IsExecutingMacro () const

Bool_t	IsFolder () const override
	Returns kTRUE in case object contains browsable objects (like containers or lists of other objects).

Bool_t	IsInterrupted () const

Bool_t	IsLineProcessing () const

Bool_t	IsProofServ () const

Bool_t	IsRootFile (const char *filename) const
	Return true if the file is local and is (likely) to be a ROOT file.

Bool_t	IsWebDisplay () const

Bool_t	IsWebDisplayBatch () const

Int_t	LoadClass (const char classname, const char libname, Bool_t check=kFALSE)
	Check if class "classname" is known to the interpreter (in fact, this check is not needed anymore, so classname is ignored).

TClass *	LoadClass (const char *name, Bool_t silent=kFALSE) const
	Helper function used by TClass::GetClass().

Int_t	LoadMacro (const char filename, Int_t error=nullptr, Bool_t check=kFALSE)
	Load a macro in the interpreter's memory.

void	ls (Option_t *option="") const override
	To list all objects of the application.

Longptr_t	Macro (const char filename, Int_t error=nullptr, Bool_t padUpdate=kTRUE)
	Execute a macro in the interpreter.

TCanvas *	MakeDefCanvas () const
	Return a default canvas.

void	Message (Int_t id, const TObject *obj)
	Process message id called by obj.

Bool_t	MustClean () const

Longptr_t	ProcessLine (const char line, Int_t error=nullptr)
	Process interpreter command via TApplication::ProcessLine().

Longptr_t	ProcessLineFast (const char line, Int_t error=nullptr)
	Process interpreter command directly via CINT interpreter.

Longptr_t	ProcessLineSync (const char line, Int_t error=nullptr)
	Process interpreter command via TApplication::ProcessLine().

Bool_t	ReadingObject () const
	Deprecated (will be removed in next release).

void	RecursiveRemove (TObject *obj) override
	Recursively remove this object from the list of Cleanups.

void	RefreshBrowsers ()
	Refresh all browsers.

TObject *	Remove (TObject *) override
	Remove an object from the in-memory list.

void	RemoveClass (TClass *)
	Remove a class from the list and map of classes.

void	Reset (Option_t *option="")
	Delete all global interpreter objects created since the last call to Reset.

void	ResetClassSaved ()
	Reset the ClassSaved status of all classes.

void	SaveContext ()
	Save the current interpreter context.

void	SetApplication (TApplication *app)

void	SetBatch (Bool_t batch=kTRUE)
	Set batch mode for ROOT If the argument evaluates to `true`, the session does not use interactive graphics.

void	SetCutClassName (const char *name="TCutG")
	Set the default graphical cut class name for the graphics editor By default the graphics editor creates an instance of a class TCutG.

void	SetDefCanvasName (const char *name="c1")

void	SetEditHistograms (Bool_t flag=kTRUE)

void	SetEditorMode (const char *mode="")
	Set editor mode.

void	SetEscape (Bool_t flag=kTRUE)

void	SetExecutingMacro (Bool_t flag=kTRUE)

void	SetFromPopUp (Bool_t flag=kTRUE)

void	SetInterrupt (Bool_t flag=kTRUE)

void	SetLineHasBeenProcessed ()

void	SetLineIsProcessing ()

void	SetMustClean (Bool_t flag=kTRUE)

void	SetReadingObject (Bool_t flag=kTRUE)

void	SetSelectedPad (TVirtualPad *pad)

void	SetSelectedPrimitive (const TObject *obj)

void	SetStyle (const char *stylename="Default")
	Change current style to style with name stylename.

void	SetWebDisplay (const char *webdisplay="")
	Specify where web graphics shall be rendered.

void	Streamer (TBuffer &) override
	TDirectory Streamer.

void	StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)

void	Time (Int_t casetime=1)

Int_t	Timer () const

Public Member Functions inherited from TDirectory
	TDirectory ()
	Directory default constructor.

	TDirectory (const char name, const char title, Option_t option="", TDirectory motherDir=nullptr)
	Create a new Directory.

virtual	~TDirectory ()
	Destructor.

virtual void	Add (TObject *obj, Bool_t replace=kFALSE)

virtual Int_t	AppendKey (TKey *)

virtual void	Build (TFile motherFile=nullptr, TDirectory motherDir=nullptr)

virtual Bool_t	cd ()
	Change current directory to "this" directory.

virtual Bool_t	cd (const char *path)
	Change current directory to "this" directory or to the directory described by the path if given one.

void	Clear (Option_t *option="") override
	Delete all objects from a Directory list.

virtual TObject *	CloneObject (const TObject *obj, Bool_t autoadd=kTRUE)
	Clone an object.

virtual void	Close (Option_t *option="")
	Delete all objects from memory and directory structure itself.

void	Copy (TObject &) const override
	Copy this to obj.

void	Delete (const char *namecycle="") override
	Delete Objects or/and keys in a directory.

virtual void	DeleteAll (Option_t *option="")
	Delete all objects from memory.

void	Draw (Option_t *option="") override
	Fill Graphics Structure and Paint.

virtual TKey *	FindKey (const char *) const

virtual TKey *	FindKeyAny (const char *) const

virtual TObject *	Get (const char *namecycle)
	Return pointer to object identified by namecycle.

template<class T >
T *	Get (const char *namecycle)
	See documentation of TDirectoryFile::Get(const char *namecycle)

virtual Int_t	GetBufferSize () const

virtual TDirectory *	GetDirectory (const char namecycle, Bool_t printError=false, const char funcname="GetDirectory")
	Find a directory using apath.

virtual TKey *	GetKey (const char *, Short_t=9999) const

virtual TList *	GetList () const

virtual TList *	GetListOfKeys () const

TObject *	GetMother () const

TDirectory *	GetMotherDir () const

virtual Int_t	GetNbytesKeys () const

virtual Int_t	GetNkeys () const

template<class T >
void	GetObject (const char namecycle, T &ptr)
	Get an object with proper type checking.

virtual void *	GetObjectChecked (const char namecycle, const char classname)
	See documentation of TDirectory::GetObjectCheck(const char namecycle, const TClass cl)

virtual void *	GetObjectChecked (const char namecycle, const TClass cl)
	Return pointer to object identified by namecycle if and only if the actual object is a type suitable to be stored as a pointer to a "expectedClass" If expectedClass is null, no check is performed.

virtual void *	GetObjectUnchecked (const char *namecycle)
	Return pointer to object identified by namecycle.

virtual const char *	GetPath () const
	Returns the full path of the directory.

virtual const char *	GetPathStatic () const
	Returns the full path of the directory.

virtual Long64_t	GetSeekDir () const

virtual Long64_t	GetSeekKeys () const

virtual Long64_t	GetSeekParent () const

TUUID	GetUUID () const

Bool_t	IsBuilt () const

virtual Bool_t	IsModified () const

virtual Bool_t	IsWritable () const

virtual TDirectory *	mkdir (const char name, const char title="", Bool_t returnExistingDirectory=kFALSE)
	Create a sub-directory "a" or a hierarchy of sub-directories "a/b/c/...".

virtual TFile *	OpenFile (const char , Option_t ="", const char *="", Int_t=1, Int_t=0)

void	Paint (Option_t *option="") override
	Paint all objects in the directory.

void	Print (Option_t *option="") const override
	Print all objects in the directory.

virtual void	Purge (Short_t=1)

virtual void	pwd () const
	Print the path of the directory.

virtual void	ReadAll (Option_t *="")

virtual Int_t	ReadKeys (Bool_t=kTRUE)

virtual Int_t	ReadTObject (TObject , const char )

virtual void	rmdir (const char *name)
	Removes subdirectory from the directory When directory is deleted, all keys in all subdirectories will be read first and deleted from file (if exists) Equivalent call is Delete("name;*");.

virtual void	Save ()

virtual Int_t	SaveObjectAs (const TObject , const char ="", Option_t *="") const
	Save object in filename, if filename is `nullptr` or "", a file with "<objectname>.root" is created.

virtual void	SaveSelf (Bool_t=kFALSE)

virtual void	SetBufferSize (Int_t)

virtual void	SetModified ()

virtual void	SetMother (TObject *mother)

void	SetName (const char *newname) override
	Set the name for directory If the directory name is changed after the directory was written once, ROOT currently would NOT change the name of correspondent key in the mother directory.

virtual void	SetSeekDir (Long64_t)

virtual void	SetTRefAction (TObject , TObject )

virtual void	SetWritable (Bool_t)

Int_t	Sizeof () const override
	Return size of the TNamed part of the TObject.

void	StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)

virtual Int_t	Write (const char *=nullptr, Int_t=0, Int_t=0) const override
	Write this object to the current directory.

virtual Int_t	Write (const char *=nullptr, Int_t=0, Int_t=0) override
	Write this object to the current directory.

virtual void	WriteDirHeader ()

virtual void	WriteKeys ()

template<typename T >
std::enable_if_t<!std::is_base_of< TObject, T >::value, Int_t >	WriteObject (const T obj, const char name, Option_t *option="", Int_t bufsize=0)
	Write an object with proper type checking.

template<typename T >
std::enable_if_t< std::is_base_of< TObject, T >::value, Int_t >	WriteObject (const T obj, const char name, Option_t *option="", Int_t bufsize=0)
	Write an object with proper type checking.

virtual Int_t	WriteObjectAny (const void , const char , const char , Option_t ="", Int_t=0)

virtual Int_t	WriteObjectAny (const void , const TClass , const char , Option_t ="", Int_t=0)

virtual Int_t	WriteTObject (const TObject obj, const char name=nullptr, Option_t *="", Int_t=0)
	Write an object with proper type checking.

Public Member Functions inherited from TNamed
	TNamed ()

	TNamed (const char name, const char title)

	TNamed (const TNamed &named)
	TNamed copy ctor.

	TNamed (const TString &name, const TString &title)

virtual	~TNamed ()
	TNamed destructor.

void	Clear (Option_t *option="") override
	Set name and title to empty strings ("").

TObject *	Clone (const char *newname="") const override
	Make a clone of an object using the Streamer facility.

Int_t	Compare (const TObject *obj) const override
	Compare two TNamed objects.

void	Copy (TObject &named) const override
	Copy this to obj.

virtual void	FillBuffer (char *&buffer)
	Encode TNamed into output buffer.

const char *	GetName () const override
	Returns name of object.

const char *	GetTitle () const override
	Returns title of object.

ULong_t	Hash () const override
	Return hash value for this object.

Bool_t	IsSortable () const override

TNamed &	operator= (const TNamed &rhs)
	TNamed assignment operator.

void	Print (Option_t *option="") const override
	Print TNamed name and title.

virtual void	SetNameTitle (const char name, const char title)
	Set all the TNamed parameters (name and title).

virtual void	SetTitle (const char *title="")
	Set the title of the TNamed.

void	StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)

Public Member Functions inherited from TObject
	TObject ()
	TObject constructor.

	TObject (const TObject &object)
	TObject copy ctor.

virtual	~TObject ()
	TObject destructor.

void	AbstractMethod (const char *method) const
	Use this method to implement an "abstract" method that you don't want to leave purely abstract.

virtual void	AppendPad (Option_t *option="")
	Append graphics object to current pad.

ULong_t	CheckedHash ()
	Check and record whether this class has a consistent Hash/RecursiveRemove setup (*) and then return the regular Hash value for this object.

virtual const char *	ClassName () const
	Returns name of class to which the object belongs.

virtual Int_t	DistancetoPrimitive (Int_t px, Int_t py)
	Computes distance from point (px,py) to the object.

virtual void	DrawClass () const
	Draw class inheritance tree of the class to which this object belongs.

virtual TObject *	DrawClone (Option_t *option="") const
	Draw a clone of this object in the current selected pad with: `gROOT->SetSelectedPad(c1)`.

virtual void	Dump () const
	Dump contents of object on stdout.

virtual void	Error (const char method, const char msgfmt,...) const
	Issue error message.

virtual void	Execute (const char method, const char params, Int_t *error=nullptr)
	Execute method on this object with the given parameter string, e.g.

virtual void	Execute (TMethod method, TObjArray params, Int_t *error=nullptr)
	Execute method on this object with parameters stored in the TObjArray.

virtual void	ExecuteEvent (Int_t event, Int_t px, Int_t py)
	Execute action corresponding to an event at (px,py).

virtual void	Fatal (const char method, const char msgfmt,...) const
	Issue fatal error message.

virtual Option_t *	GetDrawOption () const
	Get option used by the graphics system to draw this object.

virtual const char *	GetIconName () const
	Returns mime type name of object.

virtual char *	GetObjectInfo (Int_t px, Int_t py) const
	Returns string containing info about the object at position (px,py).

virtual Option_t *	GetOption () const

virtual UInt_t	GetUniqueID () const
	Return the unique object id.

virtual Bool_t	HandleTimer (TTimer *timer)
	Execute action in response of a timer timing out.

Bool_t	HasInconsistentHash () const
	Return true is the type of this object is known to have an inconsistent setup for Hash and RecursiveRemove (i.e.

virtual void	Info (const char method, const char msgfmt,...) const
	Issue info message.

virtual Bool_t	InheritsFrom (const char *classname) const
	Returns kTRUE if object inherits from class "classname".

virtual Bool_t	InheritsFrom (const TClass *cl) const
	Returns kTRUE if object inherits from TClass cl.

virtual void	Inspect () const
	Dump contents of this object in a graphics canvas.

void	InvertBit (UInt_t f)

Bool_t	IsDestructed () const
	IsDestructed.

virtual Bool_t	IsEqual (const TObject *obj) const
	Default equal comparison (objects are equal if they have the same address in memory).

R__ALWAYS_INLINE Bool_t	IsOnHeap () const

R__ALWAYS_INLINE Bool_t	IsZombie () const

void	MayNotUse (const char *method) const
	Use this method to signal that a method (defined in a base class) may not be called in a derived class (in principle against good design since a child class should not provide less functionality than its parent, however, sometimes it is necessary).

virtual Bool_t	Notify ()
	This method must be overridden to handle object notification (the base implementation is no-op).

void	Obsolete (const char method, const char asOfVers, const char *removedFromVers) const
	Use this method to declare a method obsolete.

void	operator delete (void *ptr)
	Operator delete.

void	operator delete (void ptr, void vp)
	Only called by placement new when throwing an exception.

void	operator delete[] (void *ptr)
	Operator delete [].

void	operator delete[] (void ptr, void vp)
	Only called by placement new[] when throwing an exception.

void *	operator new (size_t sz)

void *	operator new (size_t sz, void *vp)

void *	operator new[] (size_t sz)

void *	operator new[] (size_t sz, void *vp)

TObject &	operator= (const TObject &rhs)
	TObject assignment operator.

virtual void	Pop ()
	Pop on object drawn in a pad to the top of the display list.

virtual Int_t	Read (const char *name)
	Read contents of object with specified name from the current directory.

void	ResetBit (UInt_t f)

virtual void	SaveAs (const char filename="", Option_t option="") const
	Save this object in the file specified by filename.

virtual void	SavePrimitive (std::ostream &out, Option_t *option="")
	Save a primitive as a C++ statement(s) on output stream "out".

void	SetBit (UInt_t f)

void	SetBit (UInt_t f, Bool_t set)
	Set or unset the user status bits as specified in f.

virtual void	SetDrawOption (Option_t *option="")
	Set drawing option for object.

virtual void	SetUniqueID (UInt_t uid)
	Set the unique object id.

void	StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)

virtual void	SysError (const char method, const char msgfmt,...) const
	Issue system error message.

R__ALWAYS_INLINE Bool_t	TestBit (UInt_t f) const

Int_t	TestBits (UInt_t f) const

virtual void	UseCurrentStyle ()
	Set current style settings in this object This function is called when either TCanvas::UseCurrentStyle or TROOT::ForceStyle have been invoked.

virtual void	Warning (const char method, const char msgfmt,...) const
	Issue warning message.

Static Public Member Functions
static const std::vector< std::string > &	AddExtraInterpreterArgs (const std::vector< std::string > &args)
	Provide command line arguments to the interpreter construction.

static TClass *	Class ()

static const char *	Class_Name ()

static constexpr Version_t	Class_Version ()

static Int_t	ConvertVersionCode2Int (Int_t code)
	Convert version code to an integer, i.e. 331527 -> 51507.

static Int_t	ConvertVersionInt2Code (Int_t v)
	Convert version as an integer to version code as used in RVersion.h.

static const char *	DeclFileName ()

static Int_t	DecreaseDirLevel ()
	Decrease the indentation level for ls().

static const TString &	GetBinDir ()
	Get the binary directory in the installation. Static utility function.

static const TString &	GetDataDir ()
	Get the data directory in the installation. Static utility function.

static Int_t	GetDirLevel ()
	return directory level

static const TString &	GetDocDir ()
	Get the documentation directory in the installation. Static utility function.

static const TString &	GetEtcDir ()
	Get the sysconfig directory in the installation. Static utility function.

static const char **&	GetExtraInterpreterArgs ()
	INTERNAL function! Used by rootcling to inject interpreter arguments through a C-interface layer.

static const TString &	GetIconPath ()
	Get the icon path in the installation. Static utility function.

static const TString &	GetIncludeDir ()
	Get the include directory in the installation. Static utility function.

static const TString &	GetLibDir ()
	Get the library directory in the installation. Static utility function.

static const TString &	GetMacroDir ()
	Get the macro directory in the installation. Static utility function.

static const char *	GetMacroPath ()
	Get macro search path. Static utility function.

static const TString &	GetRootSys ()
	Get the rootsys directory in the installation. Static utility function.

static const TString &	GetSharedLibDir ()
	Get the shared libraries directory in the installation. Static utility function.

static const TString &	GetSourceDir ()
	Get the source directory in the installation. Static utility function.

static const TString &	GetTTFFontDir ()
	Get the fonts directory in the installation. Static utility function.

static const TString &	GetTutorialDir ()
	Get the tutorials directory in the installation. Static utility function.

static const char *	GetTutorialsDir ()
	Get the tutorials directory in the installation.

static Int_t	IncreaseDirLevel ()
	Increase the indentation level for ls().

static void	IndentLevel ()
	Functions used by ls() to indent an object hierarchy.

static void	Initialize ()
	Initialize ROOT explicitly.

static Bool_t	Initialized ()
	Return kTRUE if the TROOT object has been initialized.

static void	RegisterModule (const char modulename, const char headers, const char includePaths, const char payLoadCode, const char fwdDeclCode, void(triggerFunc)(), const FwdDeclArgsToKeepCollection_t &fwdDeclsArgToSkip, const char **classesHeaders, bool hasCxxModule=false)
	Called by static dictionary initialization to register clang modules for headers.

static Int_t	RootVersionCode ()
	Return ROOT version code as defined in RVersion.h.

static void	SetDirLevel (Int_t level=0)
	Return Indentation level for ls().

static void	SetMacroPath (const char *newpath)
	Set or extend the macro search path.

static void	ShutDown ()
	Shut down ROOT.

Static Public Member Functions inherited from TDirectory
static void	AddDirectory (Bool_t add=kTRUE)
	Sets the flag controlling the automatic add objects like histograms, TGraph2D, etc in memory.

static Bool_t	AddDirectoryStatus ()
	Static function: see TDirectory::AddDirectory for more comments.

static Bool_t	Cd (const char *path)
	Change current directory to "path".

static TClass *	Class ()

static const char *	Class_Name ()

static constexpr Version_t	Class_Version ()

static std::atomic< TDirectory * > &	CurrentDirectory ()
	Return the current directory for the current thread.

static const char *	DeclFileName ()

static void	DecodeNameCycle (const char namecycle, char name, Short_t &cycle, const size_t namesize=0)
	Decode a namecycle "aap;2" into name "aap" and cycle "2".

Static Public Member Functions inherited from TNamed
static TClass *	Class ()

static const char *	Class_Name ()

static constexpr Version_t	Class_Version ()

static const char *	DeclFileName ()

Static Public Member Functions inherited from TObject
static TClass *	Class ()

static const char *	Class_Name ()

static constexpr Version_t	Class_Version ()

static const char *	DeclFileName ()

static Longptr_t	GetDtorOnly ()
	Return destructor only flag.

static Bool_t	GetObjectStat ()
	Get status of object stat flag.

static void	SetDtorOnly (void *obj)
	Set destructor only flag.

static void	SetObjectStat (Bool_t stat)
	Turn on/off tracking of objects in the TObjectTable.

Protected Types
typedef std::atomic< TListOfEnums * >	AListOfEnums_t

Protected Types inherited from TDirectory
using	SharedGDirectory_t = std::shared_ptr< std::atomic< TDirectory * > >
	Pointer to a list of TContext object pointing to this TDirectory.

Protected Types inherited from TObject
enum	{ kOnlyPrepStep = (1ULL << ( 3 )) }

Protected Member Functions
	TROOT ()
	Only used by Dictionary.

TListOfFunctions *	GetGlobalFunctions ()
	Internal routine returning, and creating if necessary, the list of global function.

void	InitInterpreter ()
	Initialize interpreter (cling)

void	InitSystem ()
	Operating System interface.

void	InitThreads ()
	Initialize threads library.

void *	operator new (size_t l)

void *	operator new (size_t l, void *ptr)

void	ReadGitInfo ()
	Read Git commit SHA1 and branch name.

Protected Member Functions inherited from TDirectory
	TDirectory (const TDirectory &directory)=delete

void	BuildDirectory (TFile motherFile, TDirectory motherDir)
	Initialise directory to defaults.

Bool_t	cd1 (const char *path)
	flag to add histograms, graphs,etc to the directory

void	CleanTargets ()
	Clean the pointers to this object (gDirectory, TContext, etc.).

void	FillFullPath (TString &buf) const
	Recursive method to fill full path for directory.

void	operator= (const TDirectory &)=delete

void	RegisterContext (TContext *ctxt)
	Register a TContext pointing to this TDirectory object.

void	RegisterGDirectory (SharedGDirectory_t &ptr)
	Register a std::atomic<TDirectory*> that will soon be pointing to this TDirectory object.

void	UnregisterContext (TContext *ctxt)
	UnRegister a TContext pointing to this TDirectory object.

Protected Member Functions inherited from TObject
virtual void	DoError (int level, const char location, const char fmt, va_list va) const
	Interface to ErrorHandler (protected).

void	MakeZombie ()

Protected Attributes
std::atomic< TApplication * >	fApplication
	Pointer to current application.

Bool_t	fBatch
	True if session without graphics.

TList *	fBrowsables
	List of browsables.

TSeqCollection *	fBrowsers
	List of browsers.

Int_t	fBuiltDate
	Date of ROOT built.

Int_t	fBuiltTime
	Time of ROOT built.

TSeqCollection *	fCanvases
	List of canvases.

TCollection *	fClasses
	List of classes definition.

TCollection *	fClassGenerators
	List of user defined class generators;.

TSeqCollection *	fCleanups
	List of recursiveRemove collections.

TSeqCollection *	fClipboard
	List of clipboard objects.

TSeqCollection *	fClosedObjects
	List of closed objects from the list of files and sockets, so we can delete them if neededCl.

TSeqCollection *	fColors
	List of colors.

TString	fConfigFeatures
	ROOT ./configure detected build features.

TString	fConfigOptions
	ROOT ./configure set build options.

TString	fCutClassName
	Name of default CutG class in graphics editor.

TSeqCollection *	fDataSets
	List of data sets (TDSet or TChain)

TString	fDefCanvasName
	Name of default canvas.

Bool_t	fEditHistograms
	True if histograms can be edited with the mouse.

Int_t	fEditorMode
	Current Editor mode.

AListOfEnums_t	fEnums
	List of enum types.

Bool_t	fEscape
	True if ESC has been pressed.

Bool_t	fExecutingMacro
	True while executing a TMacro.

TSeqCollection *	fFiles
	List of files.

Bool_t	fForceStyle
	Force setting of current style when reading objects.

Bool_t	fFromPopUp
	True if command executed from a popup menu.

TListOfFunctionTemplates *	fFuncTemplate
	List of global function templates.

TCollection *	fFunctions
	List of analytic functions.

TSeqCollection *	fGeometries
	List of geometries.

TString	fGitBranch
	Git branch.

TString	fGitCommit
	Git commit SHA1 of built.

TString	fGitDate
	Date and time when make was run.

TListOfFunctions *	fGlobalFunctions
	List of global functions.

TListOfDataMembers *	fGlobals
	List of global variables.

TInterpreter *	fInterpreter
	Command interpreter.

Bool_t	fInterrupt
	True if macro should be interrupted.

Bool_t	fIsWebDisplay
	True if session uses web widgets.

Bool_t	fIsWebDisplayBatch
	True if web widgets are not displayed.

TSeqCollection *	fMappedFiles
	List of memory mapped files.

TSeqCollection *	fMessageHandlers
	List of message handlers.

Bool_t	fMustClean
	True if object destructor scans canvases.

TPluginManager *	fPluginManager
	Keeps track of plugin library handlers.

const TObject *	fPrimitive
	Currently selected primitive.

TSeqCollection *	fProofs
	List of proof sessions.

TFolder *	fRootFolder
	top level folder //root

TSeqCollection *	fSecContexts
	List of security contexts (TSecContext)

TVirtualPad *	fSelectPad
	Currently selected pad.

TSeqCollection *	fSockets
	List of network sockets.

TSeqCollection *	fSpecials
	List of special objects.

TSeqCollection *	fStreamerInfo
	List of active StreamerInfo classes.

TSeqCollection *	fStyles
	List of styles.

TSeqCollection *	fTasks
	List of tasks.

Int_t	fTimer
	Timer flag.

TCollection *	fTypes
	List of data types definition.

TProcessUUID *	fUUIDs
	Pointer to TProcessID managing TUUIDs.

TString	fVersion
	ROOT version (from CMZ VERSQQ) ex 0.05/01.

Int_t	fVersionCode
	ROOT version code as used in RVersion.h.

Int_t	fVersionDate
	Date of ROOT version (ex 951226)

Int_t	fVersionInt
	ROOT version in integer format (501)

Int_t	fVersionTime
	Time of ROOT version (ex 1152)

TString	fWebDisplay
	If not empty it defines where web graphics should be rendered (cef, qt5, browser...)

Protected Attributes inherited from TDirectory
TContext *	fContext {nullptr}
	Buffer for GetPath() function.

std::atomic< size_t >	fContextPeg {0}
	thread local gDirectory pointing to this object.

std::vector< SharedGDirectory_t >	fGDirectories

TList *	fList {nullptr}

TObject *	fMother {nullptr}

TString	fPathBuffer

std::atomic_flag	fSpinLock
	Counter delaying the TDirectory destructor from finishing.

TUUID	fUUID

Protected Attributes inherited from TNamed
TString	fName

TString	fTitle

Private Member Functions
	TROOT (const TROOT &)=delete

TROOT &	operator= (const TROOT &)=delete

Private Attributes
Int_t	fLineIsProcessing
	To synchronize multi-threads.

Static Private Attributes
static Int_t	fgDirLevel = 0
	Indentation level for ls()

static Bool_t	fgRootInit = kFALSE
	Singleton initialization flag.

Friends
class	::ROOT::Internal::TROOTAllocator

TROOT *	ROOT::Internal::GetROOT2 ()

class	TCling

Additional Inherited Members
Static Protected Member Functions inherited from TDirectory
static Bool_t	Cd1 (const char *path)
	Change current directory to "path".

static SharedGDirectory_t &	GetSharedLocalCurrentDirectory ()
	Return the (address of) a shared pointer to the struct holding the actual thread local gDirectory pointer and the atomic_flag for its lock.

Static Protected Attributes inherited from TDirectory
static Bool_t	fgAddDirectory = kTRUE
	MSVC doesn't support = ATOMIC_FLAG_INIT;.

#include <TROOT.h>

Inheritance diagram for TROOT:

[legend]

Member Typedef Documentation

◆ AListOfEnums_t

typedef std::atomic<TListOfEnums*> TROOT::AListOfEnums_t

protected

Definition at line 109 of file TROOT.h.

◆ FwdDeclArgsToKeepCollection_t

typedef std::vector<std::pair<std::string, int> > TROOT::FwdDeclArgsToKeepCollection_t

Definition at line 187 of file TROOT.h.

Constructor & Destructor Documentation

◆ TROOT() [1/3]

TROOT::TROOT ( const TROOT & )

privatedelete

◆ TROOT() [2/3]

TROOT::TROOT ( )

protected

Only used by Dictionary.

Default ctor.

Definition at line 605 of file TROOT.cxx.

◆ TROOT() [3/3]

TROOT::TROOT	(	const char *	name,
		const char *	title,
		VoidFuncPtr_t *	initfunc = `nullptr`
	)

Initialize the ROOT system.

The creation of the TROOT object initializes the ROOT system. It must be the first ROOT related action that is performed by a program. The TROOT object must be created on the stack (can not be called via new since "operator new" is protected). The TROOT object is either created as a global object (outside the main() program), or it is one of the first objects created in main(). Make sure that the TROOT object stays in scope for as long as ROOT related actions are performed. TROOT is a so called singleton so only one instance of it can be created. The single TROOT object can always be accessed via the global pointer gROOT. The name and title arguments can be used to identify the running application. The initfunc argument can contain an array of function pointers (last element must be 0). These functions are executed at the end of the constructor. This way one can easily extend the ROOT system without adding permanent dependencies (e.g. the graphics system is initialized via such a function).

Definition at line 639 of file TROOT.cxx.

◆ ~TROOT()

TROOT::~TROOT ( )

virtual

Clean up and free resources used by ROOT (files, network sockets, shared memory segments, etc.).

Definition at line 867 of file TROOT.cxx.

Member Function Documentation

◆ AddClass()

void TROOT::AddClass ( TClass * cl )

Add a class to the list and map of classes.

This routine is deprecated, use TClass::AddClass directly.

Definition at line 1025 of file TROOT.cxx.

◆ AddClassGenerator()

void TROOT::AddClassGenerator ( TClassGenerator * generator )

Add a class generator.

This generator will be called by TClass::GetClass in case its does not find a loaded rootcint dictionary to request the creation of a TClass object.

Definition at line 1035 of file TROOT.cxx.

◆ AddExtraInterpreterArgs()

const std::vector< std::string > & TROOT::AddExtraInterpreterArgs ( const std::vector< std::string > & args )

static

Provide command line arguments to the interpreter construction.

These arguments are added to the existing flags (e.g. -DNDEBUG). They are evaluated once per process, at the time where TROOT (and thus TInterpreter) is constructed. Returns the new flags.

Definition at line 2956 of file TROOT.cxx.

◆ Append()

void TROOT::Append	(	TObject *	obj,
		Bool_t	replace = `kFALSE`
	)

overridevirtual

Append object to this directory.

If replace is true: remove any existing objects with the same same (if the name is not "")

Reimplemented from TDirectory.

Definition at line 1047 of file TROOT.cxx.

◆ Browse()

void TROOT::Browse ( TBrowser * b )

overridevirtual

Add browsable objects to TBrowser.

Reimplemented from TDirectory.

Definition at line 1056 of file TROOT.cxx.

◆ Class()

static TClass * TROOT::Class ( )

static

Returns: TClass describing this class

◆ Class_Name()

static const char * TROOT::Class_Name ( )

static

Returns: Name of this class

◆ Class_Version()

static constexpr Version_t TROOT::Class_Version ( )

inlinestaticconstexpr

Returns: Version of this class

Definition at line 372 of file TROOT.h.

◆ ClassSaved()

Bool_t TROOT::ClassSaved ( TClass * cl )

return class status 'ClassSaved' for class cl This function is called by the SavePrimitive functions writing the C++ code for an object.

Definition at line 1083 of file TROOT.cxx.

◆ CloseFiles()

void TROOT::CloseFiles ( )

Close any files and sockets that gROOT knows about.

This can be used to insures that the files and sockets are closed before any library is unloaded!

Definition at line 1168 of file TROOT.cxx.

◆ ConvertVersionCode2Int()

Int_t TROOT::ConvertVersionCode2Int ( Int_t code )

static

Convert version code to an integer, i.e. 331527 -> 51507.

Definition at line 2926 of file TROOT.cxx.

◆ ConvertVersionInt2Code()

Int_t TROOT::ConvertVersionInt2Code ( Int_t v )

static

Convert version as an integer to version code as used in RVersion.h.

Definition at line 2934 of file TROOT.cxx.

◆ DeclFileName()

static const char * TROOT::DeclFileName ( )

inlinestatic

Returns: Name of the file containing the class declaration

Definition at line 372 of file TROOT.h.

◆ DecreaseDirLevel()

Int_t TROOT::DecreaseDirLevel ( )

static

Decrease the indentation level for ls().

Definition at line 2746 of file TROOT.cxx.

◆ EndOfProcessCleanups()

void TROOT::EndOfProcessCleanups ( )

Execute the cleanups necessary at the end of the process, in particular those that must be executed before the library start being unloaded.

Definition at line 1248 of file TROOT.cxx.

◆ FindObject() [1/2]

TObject * TROOT::FindObject ( const char * name ) const

overridevirtual

Returns address of a ROOT object if it exists.

If name contains at least one "/" the function calls FindObjectany else This function looks in the following order in the ROOT lists:

List of files
List of memory mapped files
List of functions
List of geometries
List of canvases
List of styles
List of specials
List of materials in current geometry
List of shapes in current geometry
List of matrices in current geometry
List of Nodes in current geometry
Current Directory in memory
Current Directory on file

Reimplemented from TDirectory.

Definition at line 1313 of file TROOT.cxx.

◆ FindObject() [2/2]

TObject * TROOT::FindObject ( const TObject * obj ) const

overridevirtual

Find an object in one Root folder.

Reimplemented from TDirectory.

Definition at line 1287 of file TROOT.cxx.

◆ FindObjectAny()

TObject * TROOT::FindObjectAny ( const char * name ) const

overridevirtual

Return a pointer to the first object with name starting at //root.

This function scans the list of all folders. if no object found in folders, it scans the memory list of all files.

Reimplemented from TDirectory.

Definition at line 1426 of file TROOT.cxx.

◆ FindObjectAnyFile()

TObject * TROOT::FindObjectAnyFile ( const char * name ) const

overridevirtual

Scan the memory lists of all files for an object with name.

Reimplemented from TDirectory.

Definition at line 1436 of file TROOT.cxx.

◆ FindObjectClassName()

const char * TROOT::FindObjectClassName ( const char * name ) const

Returns class name of a ROOT object including CINT globals.

Definition at line 1453 of file TROOT.cxx.

◆ FindObjectPathName()

const char * TROOT::FindObjectPathName ( const TObject * obj ) const

Return path name of obj somewhere in the //root/... path.

The function returns the first occurence of the object in the list of folders. The returned string points to a static char array in TROOT. If this function is called in a loop or recursively, it is the user's responsibility to copy this string in their area.

Definition at line 1473 of file TROOT.cxx.

◆ FindSpecialObject()

TObject * TROOT::FindSpecialObject	(	const char *	name,
		void *&	where
	)

Returns address and folder of a ROOT object if it exists.

This function looks in the following order in the ROOT lists:

List of files
List of memory mapped files
List of functions
List of geometries
List of canvases
List of styles
List of specials
List of materials in current geometry
List of shapes in current geometry
List of matrices in current geometry
List of Nodes in current geometry
Current Directory in memory
Current Directory on file

Definition at line 1367 of file TROOT.cxx.

◆ FindSTLClass()

TClass * TROOT::FindSTLClass	(	const char *	name,
		Bool_t	load,
		Bool_t	silent = `kFALSE`
	)		const

return a TClass object corresponding to 'name' assuming it is an STL container.

In particular we looking for possible alternative name (default template parameter, typedefs template arguments, typedefed name).

Definition at line 1484 of file TROOT.cxx.

◆ ForceStyle()

void TROOT::ForceStyle ( Bool_t force = kTRUE )

inline

Definition at line 206 of file TROOT.h.

◆ FromPopUp()

Bool_t TROOT::FromPopUp ( ) const

inline

Definition at line 207 of file TROOT.h.

◆ GetApplication()

TApplication * TROOT::GetApplication ( ) const

inline

Definition at line 209 of file TROOT.h.

◆ GetBinDir()

const TString & TROOT::GetBinDir ( )

static

Get the binary directory in the installation. Static utility function.

Definition at line 2993 of file TROOT.cxx.

◆ GetBuiltDate()

Int_t TROOT::GetBuiltDate ( ) const

inline

Definition at line 221 of file TROOT.h.

◆ GetBuiltTime()

Int_t TROOT::GetBuiltTime ( ) const

inline

Definition at line 222 of file TROOT.h.

◆ GetClass() [1/2]

TClass * TROOT::GetClass	(	const char *	name,
		Bool_t	load = `kTRUE`,
		Bool_t	silent = `kFALSE`
	)		const

Return pointer to class with name. Obsolete, use TClass::GetClass directly.

Definition at line 1518 of file TROOT.cxx.

◆ GetClass() [2/2]

TClass * TROOT::GetClass	(	const std::type_info &	typeinfo,
		Bool_t	load = `kTRUE`,
		Bool_t	silent = `kFALSE`
	)		const

Return pointer to class from its name.

Obsolete, use TClass::GetClass directly See TClass::GetClass

Definition at line 1528 of file TROOT.cxx.

◆ GetClipboard()

TSeqCollection * TROOT::GetClipboard ( ) const

inline

Definition at line 254 of file TROOT.h.

◆ GetColor()

TColor * TROOT::GetColor ( Int_t color ) const

Return address of color with index color.

Definition at line 1536 of file TROOT.cxx.

◆ GetConfigFeatures()

const char * TROOT::GetConfigFeatures ( ) const

inline

Definition at line 215 of file TROOT.h.

◆ GetConfigOptions()

const char * TROOT::GetConfigOptions ( ) const

inline

Definition at line 214 of file TROOT.h.

◆ GetCutClassName()

const char * TROOT::GetCutClassName ( ) const

inline

Definition at line 216 of file TROOT.h.

◆ GetDataDir()

const TString & TROOT::GetDataDir ( )

static

Get the data directory in the installation. Static utility function.

Definition at line 3066 of file TROOT.cxx.

◆ GetDefCanvasName()

const char * TROOT::GetDefCanvasName ( ) const

inline

Definition at line 217 of file TROOT.h.

◆ GetDirLevel()

Int_t TROOT::GetDirLevel ( )

static

return directory level

Definition at line 2754 of file TROOT.cxx.

◆ GetDocDir()

const TString & TROOT::GetDocDir ( )

static

Get the documentation directory in the installation. Static utility function.

Definition at line 3082 of file TROOT.cxx.

◆ GetEditHistograms()

Bool_t TROOT::GetEditHistograms ( ) const

inline

Definition at line 218 of file TROOT.h.

◆ GetEditorMode()

Int_t TROOT::GetEditorMode ( ) const

inline

Definition at line 219 of file TROOT.h.

◆ GetEtcDir()

const TString & TROOT::GetEtcDir ( )

static

Get the sysconfig directory in the installation. Static utility function.

Definition at line 3056 of file TROOT.cxx.

◆ GetExtraInterpreterArgs()

const char **& TROOT::GetExtraInterpreterArgs ( )

static

INTERNAL function! Used by rootcling to inject interpreter arguments through a C-interface layer.

Definition at line 2966 of file TROOT.cxx.

◆ GetFile() [1/2]

TFile * TROOT::GetFile ( ) const

inlineoverridevirtual

Reimplemented from TDirectory.

Definition at line 260 of file TROOT.h.

◆ GetFile() [2/2]

TFile * TROOT::GetFile ( const char * name ) const

Return pointer to file with name.

Definition at line 1570 of file TROOT.cxx.

◆ GetForceStyle()

Bool_t TROOT::GetForceStyle ( ) const

inline

Definition at line 220 of file TROOT.h.

◆ GetFunction()

TObject * TROOT::GetFunction ( const char * name ) const

Return pointer to function with name.

Definition at line 1587 of file TROOT.cxx.

◆ GetFunctionTemplate()

TFunctionTemplate * TROOT::GetFunctionTemplate ( const char * name )

Definition at line 1618 of file TROOT.cxx.

◆ GetGeometry()

TObject * TROOT::GetGeometry ( const char * name ) const

Return pointer to Geometry with name.

Definition at line 1747 of file TROOT.cxx.

◆ GetGitBranch()

const char * TROOT::GetGitBranch ( ) const

inline

Definition at line 224 of file TROOT.h.

◆ GetGitCommit()

const char * TROOT::GetGitCommit ( ) const

inline

Definition at line 223 of file TROOT.h.

◆ GetGitDate()

const char * TROOT::GetGitDate ( )

Return date/time make was run.

Definition at line 2474 of file TROOT.cxx.

◆ GetGlobal() [1/2]

TGlobal * TROOT::GetGlobal	(	const char *	name,
		Bool_t	load = `kFALSE`
	)		const

Return pointer to global variable by name.

If load is true force reading of all currently defined globals from CINT (more expensive).

Definition at line 1631 of file TROOT.cxx.

◆ GetGlobal() [2/2]

TGlobal * TROOT::GetGlobal	(	const TObject *	obj,
		Bool_t	load = `kFALSE`
	)		const

Return pointer to global variable with address addr.

Definition at line 1639 of file TROOT.cxx.

◆ GetGlobalFunction()

TFunction * TROOT::GetGlobalFunction	(	const char *	function,
		const char *	params = `nullptr`,
		Bool_t	load = `kFALSE`
	)

Return pointer to global function by name.

If params != 0 it will also resolve overloading other it returns the first name match. If params == 0 and load is true force reading of all currently defined global functions from Cling. The param string must be of the form: "3189,\"aap\",1.3".

Definition at line 1685 of file TROOT.cxx.

◆ GetGlobalFunctions()

TListOfFunctions * TROOT::GetGlobalFunctions ( )

protected

Internal routine returning, and creating if necessary, the list of global function.

Definition at line 1663 of file TROOT.cxx.

◆ GetGlobalFunctionWithPrototype()

TFunction * TROOT::GetGlobalFunctionWithPrototype	(	const char *	function,
		const char *	proto = `nullptr`,
		Bool_t	load = `kFALSE`
	)

Return pointer to global function by name.

If proto != 0 it will also resolve overloading. If load is true force reading of all currently defined global functions from CINT (more expensive). The proto string must be of the form: "int, char*, float".

Definition at line 1718 of file TROOT.cxx.

◆ GetIconPath()

const TString & TROOT::GetIconPath ( )

static

Get the icon path in the installation. Static utility function.

Definition at line 3172 of file TROOT.cxx.

◆ GetIncludeDir()

const TString & TROOT::GetIncludeDir ( )

static

Get the include directory in the installation. Static utility function.

Definition at line 3046 of file TROOT.cxx.

◆ GetInterpreter()

TInterpreter * TROOT::GetInterpreter ( ) const

inline

Definition at line 210 of file TROOT.h.

◆ GetLibDir()

const TString & TROOT::GetLibDir ( )

static

Get the library directory in the installation. Static utility function.

Definition at line 3014 of file TROOT.cxx.

◆ GetListOfBrowsables()

TList * TROOT::GetListOfBrowsables ( ) const

inline

Definition at line 258 of file TROOT.h.

◆ GetListOfBrowsers()

TSeqCollection * TROOT::GetListOfBrowsers ( ) const

inline

Definition at line 245 of file TROOT.h.

◆ GetListOfCanvases()

TSeqCollection * TROOT::GetListOfCanvases ( ) const

inline

Definition at line 240 of file TROOT.h.

◆ GetListOfClasses()

TCollection * TROOT::GetListOfClasses ( ) const

inline

Definition at line 231 of file TROOT.h.

◆ GetListOfClassGenerators()

TCollection * TROOT::GetListOfClassGenerators ( ) const

inline

Definition at line 251 of file TROOT.h.

◆ GetListOfCleanups()

TSeqCollection * TROOT::GetListOfCleanups ( ) const

inline

Definition at line 248 of file TROOT.h.

◆ GetListOfClosedObjects()

TSeqCollection * TROOT::GetListOfClosedObjects ( ) const

inline

Definition at line 236 of file TROOT.h.

◆ GetListOfColors()

TSeqCollection * TROOT::GetListOfColors ( ) const

inline

Definition at line 232 of file TROOT.h.

◆ GetListOfDataSets()

TSeqCollection * TROOT::GetListOfDataSets ( ) const

inline

Definition at line 255 of file TROOT.h.

◆ GetListOfEnums()

TCollection * TROOT::GetListOfEnums ( Bool_t load = kFALSE )

Definition at line 1754 of file TROOT.cxx.

◆ GetListOfFiles()

TSeqCollection * TROOT::GetListOfFiles ( ) const

inline

Definition at line 237 of file TROOT.h.

◆ GetListOfFunctionOverloads()

TCollection * TROOT::GetListOfFunctionOverloads ( const char * name ) const

Return the collection of functions named "name".

Definition at line 1672 of file TROOT.cxx.

◆ GetListOfFunctions()

TCollection * TROOT::GetListOfFunctions ( ) const

inline

Definition at line 242 of file TROOT.h.

◆ GetListOfFunctionTemplates()

TCollection * TROOT::GetListOfFunctionTemplates ( )

Definition at line 1771 of file TROOT.cxx.

◆ GetListOfGeometries()

TSeqCollection * TROOT::GetListOfGeometries ( ) const

inline

Definition at line 244 of file TROOT.h.

◆ GetListOfGlobalFunctions()

TCollection * TROOT::GetListOfGlobalFunctions ( Bool_t load = kFALSE )

Return list containing the TFunctions currently defined.

Since functions are created and deleted during execution of the program, we need to update the list of functions every time we execute this method. However, when calling this function in a (tight) loop where no interpreter symbols will be created you can set load=kFALSE (default).

Definition at line 1826 of file TROOT.cxx.

◆ GetListOfGlobals()

TCollection * TROOT::GetListOfGlobals ( Bool_t load = kFALSE )

Return list containing the TGlobals currently defined.

Since globals are created and deleted during execution of the program, we need to update the list of globals every time we execute this method. However, when calling this function in a (tight) loop where no interpreter symbols will be created you can set load=kFALSE (default).

Definition at line 1788 of file TROOT.cxx.

◆ GetListOfMappedFiles()

TSeqCollection * TROOT::GetListOfMappedFiles ( ) const

inline

Definition at line 238 of file TROOT.h.

◆ GetListOfMessageHandlers()

TSeqCollection * TROOT::GetListOfMessageHandlers ( ) const

inline

Definition at line 250 of file TROOT.h.

◆ GetListOfProofs()

TSeqCollection * TROOT::GetListOfProofs ( ) const

inline

Definition at line 253 of file TROOT.h.

◆ GetListOfSecContexts()

TSeqCollection * TROOT::GetListOfSecContexts ( ) const

inline

Definition at line 252 of file TROOT.h.

◆ GetListOfSockets()

TSeqCollection * TROOT::GetListOfSockets ( ) const

inline

Definition at line 239 of file TROOT.h.

◆ GetListOfSpecials()

TSeqCollection * TROOT::GetListOfSpecials ( ) const

inline

Definition at line 246 of file TROOT.h.

◆ GetListOfStreamerInfo()

TSeqCollection * TROOT::GetListOfStreamerInfo ( ) const

inline

Definition at line 249 of file TROOT.h.

◆ GetListOfStyles()

TSeqCollection * TROOT::GetListOfStyles ( ) const

inline

Definition at line 241 of file TROOT.h.

◆ GetListOfTasks()

TSeqCollection * TROOT::GetListOfTasks ( ) const

inline

Definition at line 247 of file TROOT.h.

◆ GetListOfTypes()

TCollection * TROOT::GetListOfTypes ( Bool_t load = kFALSE )

Return a dynamic list giving access to all TDataTypes (typedefs) currently defined.

The list is populated on demand. Calling

gROOT->GetListOfTypes()->FindObject(nameoftype);

will return the TDataType corresponding to 'nameoftype'. If the TDataType is not already in the list itself and the type does exist, a new TDataType will be created and added to the list.

Calling

gROOT->GetListOfTypes()->ls(); // or Print()

list only the typedefs that have been previously accessed through the list (plus the builtins types).

Definition at line 1865 of file TROOT.cxx.

◆ GetMacroDir()

const TString & TROOT::GetMacroDir ( )

static

Get the macro directory in the installation. Static utility function.

Definition at line 3098 of file TROOT.cxx.

◆ GetMacroPath()

const char * TROOT::GetMacroPath ( )

static

Get macro search path. Static utility function.

Definition at line 2762 of file TROOT.cxx.

◆ GetNclasses()

Int_t TROOT::GetNclasses ( ) const

Get number of classes.

Definition at line 1876 of file TROOT.cxx.

◆ GetNtypes()

Int_t TROOT::GetNtypes ( ) const

Get number of types.

Definition at line 1884 of file TROOT.cxx.

◆ GetPluginManager()

TPluginManager * TROOT::GetPluginManager ( ) const

inline

Definition at line 208 of file TROOT.h.

◆ GetRootFolder()

TFolder * TROOT::GetRootFolder ( ) const

inline

Definition at line 274 of file TROOT.h.

◆ GetRootSys()

const TString & TROOT::GetRootSys ( )

static

Get the rootsys directory in the installation. Static utility function.

Definition at line 2983 of file TROOT.cxx.

◆ GetSelectedPad()

TVirtualPad * TROOT::GetSelectedPad ( ) const

inline

Definition at line 271 of file TROOT.h.

◆ GetSelectedPrimitive()

const TObject * TROOT::GetSelectedPrimitive ( ) const

inline

Definition at line 270 of file TROOT.h.

◆ GetSharedLibDir()

const TString & TROOT::GetSharedLibDir ( )

static

Get the shared libraries directory in the installation. Static utility function.

Definition at line 3035 of file TROOT.cxx.

◆ GetSourceDir()

const TString & TROOT::GetSourceDir ( )

static

Get the source directory in the installation. Static utility function.

Definition at line 3151 of file TROOT.cxx.

◆ GetStyle()

TStyle * TROOT::GetStyle ( const char * name ) const

Return pointer to style with name.

Definition at line 1579 of file TROOT.cxx.

◆ GetTTFFontDir()

const TString & TROOT::GetTTFFontDir ( )

static

Get the fonts directory in the installation. Static utility function.

Definition at line 3193 of file TROOT.cxx.

◆ GetTutorialDir()

const TString & TROOT::GetTutorialDir ( )

static

Get the tutorials directory in the installation. Static utility function.

Definition at line 3119 of file TROOT.cxx.

◆ GetTutorialsDir()

const char * TROOT::GetTutorialsDir ( )

static

Get the tutorials directory in the installation.

Static utility function. Backward compatibility function - do not use for new code

Definition at line 3215 of file TROOT.cxx.

◆ GetType()

TDataType * TROOT::GetType	(	const char *	name,
		Bool_t	load = `kFALSE`
	)		const

Return pointer to type with name.

Definition at line 1562 of file TROOT.cxx.

◆ GetUUIDs()

TProcessUUID * TROOT::GetUUIDs ( ) const

inline

Definition at line 275 of file TROOT.h.

◆ GetVersion()

const char * TROOT::GetVersion ( ) const

inline

Definition at line 230 of file TROOT.h.

◆ GetVersionCode()

Int_t TROOT::GetVersionCode ( ) const

inline

Definition at line 229 of file TROOT.h.

◆ GetVersionDate()

Int_t TROOT::GetVersionDate ( ) const

inline

Definition at line 226 of file TROOT.h.

◆ GetVersionInt()

Int_t TROOT::GetVersionInt ( ) const

inline

Definition at line 228 of file TROOT.h.

◆ GetVersionTime()

Int_t TROOT::GetVersionTime ( ) const

inline

Definition at line 227 of file TROOT.h.

◆ GetWebDisplay()

const TString & TROOT::GetWebDisplay ( ) const

inline

Definition at line 276 of file TROOT.h.

◆ Idle()

void TROOT::Idle	(	UInt_t	idleTimeInSec,
		const char *	command = `nullptr`
	)

Execute command when system has been idle for idleTimeInSec seconds.

Definition at line 1892 of file TROOT.cxx.

◆ IgnoreInclude()

Int_t TROOT::IgnoreInclude	(	const char *	fname,
		const char *	expandedfname
	)

Return 1 if the name of the given include file corresponds to a class that is known to ROOT, e.g.

"TLorentzVector.h" versus TLorentzVector.

Definition at line 1928 of file TROOT.cxx.

◆ IncreaseDirLevel()

Int_t TROOT::IncreaseDirLevel ( )

static

Increase the indentation level for ls().

Definition at line 2887 of file TROOT.cxx.

◆ IndentLevel()

void TROOT::IndentLevel ( )

static

Functions used by ls() to indent an object hierarchy.

Definition at line 2895 of file TROOT.cxx.

◆ Initialize()

void TROOT::Initialize ( )

static

Initialize ROOT explicitly.

Definition at line 2903 of file TROOT.cxx.

◆ Initialized()

Bool_t TROOT::Initialized ( )

static

Return kTRUE if the TROOT object has been initialized.

Definition at line 2910 of file TROOT.cxx.

◆ InitInterpreter()

void TROOT::InitInterpreter ( )

protected

Initialize interpreter (cling)

Initialize the interpreter.

Should be called only after main(), to make sure LLVM/Clang is fully initialized.

Definition at line 2064 of file TROOT.cxx.

◆ InitSystem()

void TROOT::InitSystem ( )

protected

Operating System interface.

Initialize operating system interface.

Definition at line 1978 of file TROOT.cxx.

◆ InitThreads()

void TROOT::InitThreads ( )

protected

Initialize threads library.

Load and initialize thread library.

Definition at line 2053 of file TROOT.cxx.

◆ IsA()

TClass * TROOT::IsA ( ) const

inlineoverridevirtual

Returns: TClass describing current object

Reimplemented from TDirectory.

Definition at line 372 of file TROOT.h.

◆ IsBatch()

Bool_t TROOT::IsBatch ( ) const

inline

Definition at line 279 of file TROOT.h.

◆ IsEscaped()

Bool_t TROOT::IsEscaped ( ) const

inline

Definition at line 283 of file TROOT.h.

◆ IsExecutingMacro()

Bool_t TROOT::IsExecutingMacro ( ) const

inline

Definition at line 280 of file TROOT.h.

◆ IsFolder()

Bool_t TROOT::IsFolder ( ) const

inlineoverridevirtual

Returns kTRUE in case object contains browsable objects (like containers or lists of other objects).

Reimplemented from TDirectory.

Definition at line 281 of file TROOT.h.

◆ IsInterrupted()

Bool_t TROOT::IsInterrupted ( ) const

inline

Definition at line 282 of file TROOT.h.

◆ IsLineProcessing()

Bool_t TROOT::IsLineProcessing ( ) const

inline

Definition at line 284 of file TROOT.h.

◆ IsProofServ()

Bool_t TROOT::IsProofServ ( ) const

inline

Definition at line 285 of file TROOT.h.

◆ IsRootFile()

Bool_t TROOT::IsRootFile ( const char * filename ) const

Return true if the file is local and is (likely) to be a ROOT file.

Definition at line 2230 of file TROOT.cxx.

◆ IsWebDisplay()

Bool_t TROOT::IsWebDisplay ( ) const

inline

Definition at line 287 of file TROOT.h.

◆ IsWebDisplayBatch()

Bool_t TROOT::IsWebDisplayBatch ( ) const

inline

Definition at line 288 of file TROOT.h.

◆ LoadClass() [1/2]

Int_t TROOT::LoadClass	(	const char *	classname,
		const char *	libname,
		Bool_t	check = `kFALSE`
	)

Check if class "classname" is known to the interpreter (in fact, this check is not needed anymore, so classname is ignored).

If not it will load library "libname". If the library couldn't be found with original libname and if the name was not prefixed with lib, try to prefix with "lib" and search again. If DynamicPathName still couldn't find the library, return -1. If check is true it will only check if libname exists and is readable. Returns 0 on successful loading, -1 in case libname does not exist or in case of error and -2 in case of version mismatch.

Definition at line 2183 of file TROOT.cxx.

◆ LoadClass() [2/2]

TClass * TROOT::LoadClass	(	const char *	requestedname,
		Bool_t	silent = `kFALSE`
	)		const

Helper function used by TClass::GetClass().

This function attempts to load the dictionary for 'classname' either from the TClassTable or from the list of generator. If silent is 'true', do not warn about missing dictionary for the class. (typically used for class that are used only for transient members)

The 'requestedname' is expected to be already normalized.

Definition at line 2167 of file TROOT.cxx.

◆ LoadMacro()

Int_t TROOT::LoadMacro	(	const char *	filename,
		Int_t *	error = `nullptr`,
		Bool_t	check = `kFALSE`
	)

Load a macro in the interpreter's memory.

Equivalent to the command line command ".L filename". If the filename has "+" or "++" appended the macro will be compiled by ACLiC. The filename must have the format: [path/]macro.C[+|++[g|O]]. The possible error codes are defined by TInterpreter::EErrorCode. If check is true it will only check if filename exists and is readable. Returns 0 on successful loading and -1 in case filename does not exist or in case of error.

Definition at line 2268 of file TROOT.cxx.

◆ ls()

void TROOT::ls ( Option_t * option = "" ) const

overridevirtual

To list all objects of the application.

Loop on all objects created in the ROOT linked lists. Objects may be files and windows or any other object directly attached to the ROOT linked list.

Reimplemented from TDirectory.

Definition at line 2250 of file TROOT.cxx.

◆ Macro()

Longptr_t TROOT::Macro	(	const char *	filename,
		Int_t *	error = `nullptr`,
		Bool_t	padUpdate = `kTRUE`
	)

Execute a macro in the interpreter.

Equivalent to the command line command ".x filename". If the filename has "+" or "++" appended the macro will be compiled by ACLiC. The filename must have the format: [path/]macro.C[+|++[g|O]][(args)]. The possible error codes are defined by TInterpreter::EErrorCode. If padUpdate is true (default) update the current pad. Returns the macro return value.

Definition at line 2316 of file TROOT.cxx.

◆ MakeDefCanvas()

TCanvas * TROOT::MakeDefCanvas ( ) const

Return a default canvas.

Definition at line 1554 of file TROOT.cxx.

◆ Message()

void TROOT::Message	(	Int_t	id,
		const TObject *	obj
	)

Process message id called by obj.

Definition at line 2350 of file TROOT.cxx.

◆ MustClean()

Bool_t TROOT::MustClean ( ) const

inline

Definition at line 296 of file TROOT.h.

◆ operator new() [1/2]

void * TROOT::operator new ( size_t l )

inlineprotected

Definition at line 178 of file TROOT.h.

◆ operator new() [2/2]

void * TROOT::operator new	(	size_t	l,
		void *	ptr
	)

inlineprotected

Definition at line 179 of file TROOT.h.

◆ operator=()

TROOT & TROOT::operator= ( const TROOT & )

privatedelete

◆ ProcessLine()

Longptr_t TROOT::ProcessLine	(	const char *	line,
		Int_t *	error = `nullptr`
	)

Process interpreter command via TApplication::ProcessLine().

On Win32 the line will be processed asynchronously by sending it to the CINT interpreter thread. For explicit synchronous processing use ProcessLineSync(). On non-Win32 platforms there is no difference between ProcessLine() and ProcessLineSync(). The possible error codes are defined by TInterpreter::EErrorCode. In particular, error will equal to TInterpreter::kProcessing until the CINT interpreted thread has finished executing the line. Returns the result of the command, cast to a Longptr_t.

Definition at line 2370 of file TROOT.cxx.

◆ ProcessLineFast()

Longptr_t TROOT::ProcessLineFast	(	const char *	line,
		Int_t *	error = `nullptr`
	)

Process interpreter command directly via CINT interpreter.

Only executable statements are allowed (no variable declarations), In all other cases use TROOT::ProcessLine(). The possible error codes are defined by TInterpreter::EErrorCode.

Definition at line 2407 of file TROOT.cxx.

◆ ProcessLineSync()

Longptr_t TROOT::ProcessLineSync	(	const char *	line,
		Int_t *	error = `nullptr`
	)

Process interpreter command via TApplication::ProcessLine().

On Win32 the line will be processed synchronously (i.e. it will only return when the CINT interpreter thread has finished executing the line). On non-Win32 platforms there is no difference between ProcessLine() and ProcessLineSync(). The possible error codes are defined by TInterpreter::EErrorCode. Returns the result of the command, cast to a Longptr_t.

Definition at line 2390 of file TROOT.cxx.

◆ ReadGitInfo()

void TROOT::ReadGitInfo ( )

protected

Read Git commit SHA1 and branch name.

Read Git commit information and branch name from the etc/gitinfo.txt file.

Definition at line 2429 of file TROOT.cxx.

◆ ReadingObject()

Bool_t TROOT::ReadingObject ( ) const

Deprecated (will be removed in next release).

Definition at line 2460 of file TROOT.cxx.

◆ RecursiveRemove()

void TROOT::RecursiveRemove ( TObject * obj )

overridevirtual

Recursively remove this object from the list of Cleanups.

Typically RecursiveRemove is implemented by classes that can contain mulitple references to a same object or shared ownership of the object with others.

Reimplemented from TDirectory.

Definition at line 2498 of file TROOT.cxx.

◆ RefreshBrowsers()

void TROOT::RefreshBrowsers ( )

Refresh all browsers.

Call this method when some command line command or script has changed the browser contents. Not needed for objects that have the kMustCleanup bit set. Most useful to update browsers that show the file system or other objects external to the running ROOT session.

Definition at line 2512 of file TROOT.cxx.

◆ RegisterModule()

void TROOT::RegisterModule	(	const char *	modulename,
		const char **	headers,
		const char **	includePaths,
		const char *	payloadCode,
		const char *	fwdDeclCode,
		void(*)()	triggerFunc,
		const FwdDeclArgsToKeepCollection_t &	fwdDeclsArgToSkip,
		const char **	classesHeaders,
		bool	hasCxxModule = `false`
	)

static

Called by static dictionary initialization to register clang modules for headers.

Calls TCling::RegisterModule() unless gCling is NULL, i.e. during startup, where the information is buffered in the static GetModuleHeaderInfoBuffer().

Definition at line 2535 of file TROOT.cxx.

◆ Remove()

TObject * TROOT::Remove ( TObject * obj )

overridevirtual

Remove an object from the in-memory list.

Since TROOT is global resource, this is lock protected.

Reimplemented from TDirectory.

Definition at line 2618 of file TROOT.cxx.

◆ RemoveClass()

void TROOT::RemoveClass ( TClass * oldcl )

Remove a class from the list and map of classes.

This routine is deprecated, use TClass::RemoveClass directly.

Definition at line 2628 of file TROOT.cxx.

◆ Reset()

void TROOT::Reset ( Option_t * option = "" )

Delete all global interpreter objects created since the last call to Reset.

If option="a" is set reset to startup context (i.e. unload also all loaded files, classes, structs, typedefs, etc.).

This function is typically used at the beginning (or end) of an unnamed macro to clean the environment.

IMPORTANT WARNING: Do not use this call from within any function (neither compiled nor interpreted. This should only be used from a unnamed macro (which starts with a { (curly braces) ). For example, using TROOT::Reset from within an interpreted function will lead to the unloading of the dictionary and source file, including the one defining the function being executed.

Definition at line 2651 of file TROOT.cxx.

◆ ResetClassSaved()

void TROOT::ResetClassSaved ( )

Reset the ClassSaved status of all classes.

Definition at line 1096 of file TROOT.cxx.

◆ RootVersionCode()

Int_t TROOT::RootVersionCode ( )

static

Return ROOT version code as defined in RVersion.h.

Definition at line 2945 of file TROOT.cxx.

◆ SaveContext()

void TROOT::SaveContext ( )

Save the current interpreter context.

Definition at line 2671 of file TROOT.cxx.

◆ SetApplication()

void TROOT::SetApplication ( TApplication * app )

inline

Definition at line 317 of file TROOT.h.

◆ SetBatch()

void TROOT::SetBatch ( Bool_t batch = kTRUE )

Set batch mode for ROOT If the argument evaluates to true, the session does not use interactive graphics.

If web graphics runs in server mode, the web widgets are still available via URL

Definition at line 2803 of file TROOT.cxx.

◆ SetCutClassName()

void TROOT::SetCutClassName ( const char * name = "TCutG" )

Set the default graphical cut class name for the graphics editor By default the graphics editor creates an instance of a class TCutG.

This function may be called to specify a different class that MUST derive from TCutG

Definition at line 2683 of file TROOT.cxx.

◆ SetDefCanvasName()

void TROOT::SetDefCanvasName ( const char * name = "c1" )

inline

Definition at line 321 of file TROOT.h.

◆ SetDirLevel()

void TROOT::SetDirLevel ( Int_t level = 0 )

static

Return Indentation level for ls().

Definition at line 2918 of file TROOT.cxx.

◆ SetEditHistograms()

void TROOT::SetEditHistograms ( Bool_t flag = kTRUE )

inline

Definition at line 322 of file TROOT.h.

◆ SetEditorMode()

void TROOT::SetEditorMode ( const char * mode = "" )

Set editor mode.

Definition at line 2704 of file TROOT.cxx.

◆ SetEscape()

void TROOT::SetEscape ( Bool_t flag = kTRUE )

inline

Definition at line 327 of file TROOT.h.

◆ SetExecutingMacro()

void TROOT::SetExecutingMacro ( Bool_t flag = kTRUE )

inline

Definition at line 324 of file TROOT.h.

◆ SetFromPopUp()

void TROOT::SetFromPopUp ( Bool_t flag = kTRUE )

inline

Definition at line 325 of file TROOT.h.

◆ SetInterrupt()

void TROOT::SetInterrupt ( Bool_t flag = kTRUE )

inline

Definition at line 326 of file TROOT.h.

◆ SetLineHasBeenProcessed()

void TROOT::SetLineHasBeenProcessed ( )

inline

Definition at line 329 of file TROOT.h.

◆ SetLineIsProcessing()

void TROOT::SetLineIsProcessing ( )

inline

Definition at line 328 of file TROOT.h.

◆ SetMacroPath()

void TROOT::SetMacroPath ( const char * newpath )

static

Set or extend the macro search path.

Static utility function. If newpath=0 or "" reset to value specified in the rootrc file.

Definition at line 2788 of file TROOT.cxx.

◆ SetMustClean()

void TROOT::SetMustClean ( Bool_t flag = kTRUE )

inline

Definition at line 331 of file TROOT.h.

◆ SetReadingObject()

void TROOT::SetReadingObject ( Bool_t flag = kTRUE )

Definition at line 2465 of file TROOT.cxx.

◆ SetSelectedPad()

void TROOT::SetSelectedPad ( TVirtualPad * pad )

inline

Definition at line 333 of file TROOT.h.

◆ SetSelectedPrimitive()

void TROOT::SetSelectedPrimitive ( const TObject * obj )

inline

Definition at line 332 of file TROOT.h.

◆ SetStyle()

void TROOT::SetStyle ( const char * stylename = "Default" )

Change current style to style with name stylename.

Definition at line 2730 of file TROOT.cxx.

◆ SetWebDisplay()

void TROOT::SetWebDisplay ( const char * webdisplay = "" )

Specify where web graphics shall be rendered.

The input parameter webdisplay defines where web graphics is rendered. webdisplay parameter may contain:

"firefox": select Mozilla Firefox browser for interactive web display
"chrome": select Google Chrome browser for interactive web display
"edge": select Microsoft Edge browser for interactive web display
"native": select one of the natively-supported web browsers firefox/chrome/edge for interactive web display
"qt5": uses QWebEngine from Qt5, no real http server started (requires qt5web component build for ROOT)
"qt6": uses QWebEngine from Qt6, no real http server started (requires qt6web component build for ROOT)
"cef": uses Chromium Embeded Framework, no real http server started (requires cefweb component build for ROOT)
"local": select on of available local (without http server) engines like qt5/qt6/cef
"default": system default web browser, invoked with xdg-open on Linux, start on Mac or open on Windows
"on": try "local", then "native", then "default" option
"off": turns off the web display and comes back to normal graphics in interactive mode.
"server:port": turns the web display into server mode with specified port. Web widgets will not be displayed, only text message with window URL will be printed on standard output

Definition at line 2831 of file TROOT.cxx.

◆ ShutDown()

void TROOT::ShutDown ( )

static

Shut down ROOT.

Definition at line 3140 of file TROOT.cxx.

◆ Streamer()

void TROOT::Streamer ( TBuffer & R__b )

overridevirtual

TDirectory Streamer.

Reimplemented from TDirectory.

◆ StreamerNVirtual()

void TROOT::StreamerNVirtual ( TBuffer & ClassDef_StreamerNVirtual_b )

inline

Definition at line 372 of file TROOT.h.

◆ Time()

void TROOT::Time ( Int_t casetime = 1 )

inline

Definition at line 335 of file TROOT.h.

◆ Timer()

Int_t TROOT::Timer ( ) const

inline

Definition at line 336 of file TROOT.h.

Friends And Related Symbol Documentation

◆ ::ROOT::Internal::TROOTAllocator

friend class ::ROOT::Internal::TROOTAllocator

friend

Definition at line 181 of file TROOT.h.

◆ ROOT::Internal::GetROOT2

TROOT * ROOT::Internal::GetROOT2 ( )

friend

◆ TCling

friend class TCling

friend

Definition at line 96 of file TROOT.h.

Member Data Documentation

◆ fApplication

std::atomic<TApplication*> TROOT::fApplication

protected

Pointer to current application.

Definition at line 124 of file TROOT.h.

◆ fBatch

Bool_t TROOT::fBatch

protected

True if session without graphics.

Definition at line 126 of file TROOT.h.

◆ fBrowsables

TList* TROOT::fBrowsables

protected

List of browsables.

Definition at line 168 of file TROOT.h.

◆ fBrowsers

TSeqCollection* TROOT::fBrowsers

protected

List of browsers.

Definition at line 155 of file TROOT.h.

◆ fBuiltDate

Int_t TROOT::fBuiltDate

protected

Date of ROOT built.

Definition at line 118 of file TROOT.h.

◆ fBuiltTime

Int_t TROOT::fBuiltTime

protected

Time of ROOT built.

Definition at line 119 of file TROOT.h.

◆ fCanvases

TSeqCollection* TROOT::fCanvases

protected

List of canvases.

Definition at line 149 of file TROOT.h.

◆ fClasses

TCollection* TROOT::fClasses

protected

List of classes definition.

Definition at line 140 of file TROOT.h.

◆ fClassGenerators

TCollection* TROOT::fClassGenerators

protected

List of user defined class generators;.

Definition at line 160 of file TROOT.h.

◆ fCleanups

TSeqCollection* TROOT::fCleanups

protected

List of recursiveRemove collections.

Definition at line 157 of file TROOT.h.

◆ fClipboard

TSeqCollection* TROOT::fClipboard

protected

List of clipboard objects.

Definition at line 163 of file TROOT.h.

◆ fClosedObjects

TSeqCollection* TROOT::fClosedObjects

protected

List of closed objects from the list of files and sockets, so we can delete them if neededCl.

Definition at line 145 of file TROOT.h.

◆ fColors

TSeqCollection* TROOT::fColors

protected

List of colors.

Definition at line 153 of file TROOT.h.

◆ fConfigFeatures

TString TROOT::fConfigFeatures

protected

ROOT ./configure detected build features.

Definition at line 112 of file TROOT.h.

◆ fConfigOptions

TString TROOT::fConfigOptions

protected

ROOT ./configure set build options.

Definition at line 111 of file TROOT.h.

◆ fCutClassName

TString TROOT::fCutClassName

protected

Name of default CutG class in graphics editor.

Definition at line 170 of file TROOT.h.

◆ fDataSets

TSeqCollection* TROOT::fDataSets

protected

List of data sets (TDSet or TChain)

Definition at line 164 of file TROOT.h.

◆ fDefCanvasName

TString TROOT::fDefCanvasName

protected

Name of default canvas.

Definition at line 171 of file TROOT.h.

◆ fEditHistograms

Bool_t TROOT::fEditHistograms

protected

True if histograms can be edited with the mouse.

Definition at line 130 of file TROOT.h.

◆ fEditorMode

Int_t TROOT::fEditorMode

protected

Current Editor mode.

Definition at line 137 of file TROOT.h.

◆ fEnums

AListOfEnums_t TROOT::fEnums

protected

List of enum types.

Definition at line 165 of file TROOT.h.

◆ fEscape

Bool_t TROOT::fEscape

protected

True if ESC has been pressed.

Definition at line 135 of file TROOT.h.

◆ fExecutingMacro

Bool_t TROOT::fExecutingMacro

protected

True while executing a TMacro.

Definition at line 136 of file TROOT.h.

◆ fFiles

TSeqCollection* TROOT::fFiles

protected

List of files.

Definition at line 146 of file TROOT.h.

◆ fForceStyle

Bool_t TROOT::fForceStyle

protected

Force setting of current style when reading objects.

Definition at line 133 of file TROOT.h.

◆ fFromPopUp

Bool_t TROOT::fFromPopUp

protected

True if command executed from a popup menu.

Definition at line 131 of file TROOT.h.

◆ fFuncTemplate

TListOfFunctionTemplates* TROOT::fFuncTemplate

protected

List of global function templates.

Definition at line 142 of file TROOT.h.

◆ fFunctions

TCollection* TROOT::fFunctions

protected

List of analytic functions.

Definition at line 151 of file TROOT.h.

◆ fgDirLevel

Int_t TROOT::fgDirLevel = 0

staticprivate

Indentation level for ls()

Definition at line 102 of file TROOT.h.

◆ fGeometries

TSeqCollection* TROOT::fGeometries

protected

List of geometries.

Definition at line 154 of file TROOT.h.

◆ fGitBranch

TString TROOT::fGitBranch

protected

Git branch.

Definition at line 121 of file TROOT.h.

◆ fGitCommit

TString TROOT::fGitCommit

protected

Git commit SHA1 of built.

Definition at line 120 of file TROOT.h.

◆ fGitDate

TString TROOT::fGitDate

protected

Date and time when make was run.

Definition at line 122 of file TROOT.h.

◆ fGlobalFunctions

TListOfFunctions* TROOT::fGlobalFunctions

protected

List of global functions.

Definition at line 144 of file TROOT.h.

◆ fGlobals

TListOfDataMembers* TROOT::fGlobals

protected

List of global variables.

Definition at line 143 of file TROOT.h.

◆ fgRootInit

Bool_t TROOT::fgRootInit = kFALSE

staticprivate

Singleton initialization flag.

Definition at line 103 of file TROOT.h.

◆ fInterpreter

TInterpreter* TROOT::fInterpreter

protected

Command interpreter.

Definition at line 125 of file TROOT.h.

◆ fInterrupt

Bool_t TROOT::fInterrupt

protected

True if macro should be interrupted.

Definition at line 134 of file TROOT.h.

◆ fIsWebDisplay

Bool_t TROOT::fIsWebDisplay

protected

True if session uses web widgets.

Definition at line 128 of file TROOT.h.

◆ fIsWebDisplayBatch

Bool_t TROOT::fIsWebDisplayBatch

protected

True if web widgets are not displayed.

Definition at line 129 of file TROOT.h.

◆ fLineIsProcessing

Int_t TROOT::fLineIsProcessing

private

To synchronize multi-threads.

Definition at line 100 of file TROOT.h.

◆ fMappedFiles

TSeqCollection* TROOT::fMappedFiles

protected

List of memory mapped files.

Definition at line 147 of file TROOT.h.

◆ fMessageHandlers

TSeqCollection* TROOT::fMessageHandlers

protected

List of message handlers.

Definition at line 158 of file TROOT.h.

◆ fMustClean

Bool_t TROOT::fMustClean

protected

True if object destructor scans canvases.

Definition at line 132 of file TROOT.h.

◆ fPluginManager

TPluginManager* TROOT::fPluginManager

protected

Keeps track of plugin library handlers.

Definition at line 169 of file TROOT.h.

◆ fPrimitive

const TObject* TROOT::fPrimitive

protected

Currently selected primitive.

Definition at line 138 of file TROOT.h.

◆ fProofs

TSeqCollection* TROOT::fProofs

protected

List of proof sessions.

Definition at line 162 of file TROOT.h.

◆ fRootFolder

TFolder* TROOT::fRootFolder

protected

top level folder //root

Definition at line 167 of file TROOT.h.

◆ fSecContexts

TSeqCollection* TROOT::fSecContexts

protected

List of security contexts (TSecContext)

Definition at line 161 of file TROOT.h.

◆ fSelectPad

TVirtualPad* TROOT::fSelectPad

protected

Currently selected pad.

Definition at line 139 of file TROOT.h.

◆ fSockets

TSeqCollection* TROOT::fSockets

protected

List of network sockets.

Definition at line 148 of file TROOT.h.

◆ fSpecials

TSeqCollection* TROOT::fSpecials

protected

List of special objects.

Definition at line 156 of file TROOT.h.

◆ fStreamerInfo

TSeqCollection* TROOT::fStreamerInfo

protected

List of active StreamerInfo classes.

Definition at line 159 of file TROOT.h.

◆ fStyles

TSeqCollection* TROOT::fStyles

protected

List of styles.

Definition at line 150 of file TROOT.h.

◆ fTasks

TSeqCollection* TROOT::fTasks

protected

List of tasks.

Definition at line 152 of file TROOT.h.

◆ fTimer

Int_t TROOT::fTimer

protected

Timer flag.

Definition at line 123 of file TROOT.h.

◆ fTypes

TCollection* TROOT::fTypes

protected

List of data types definition.

Definition at line 141 of file TROOT.h.

◆ fUUIDs

TProcessUUID* TROOT::fUUIDs

protected

Pointer to TProcessID managing TUUIDs.

Definition at line 166 of file TROOT.h.

◆ fVersion

TString TROOT::fVersion

protected

ROOT version (from CMZ VERSQQ) ex 0.05/01.

Definition at line 113 of file TROOT.h.

◆ fVersionCode

Int_t TROOT::fVersionCode

protected

ROOT version code as used in RVersion.h.

Definition at line 115 of file TROOT.h.

◆ fVersionDate

Int_t TROOT::fVersionDate

protected

Date of ROOT version (ex 951226)

Definition at line 116 of file TROOT.h.

◆ fVersionInt

Int_t TROOT::fVersionInt

protected

ROOT version in integer format (501)

Definition at line 114 of file TROOT.h.

◆ fVersionTime

Int_t TROOT::fVersionTime

protected

Time of ROOT version (ex 1152)

Definition at line 117 of file TROOT.h.

◆ fWebDisplay

TString TROOT::fWebDisplay

protected

If not empty it defines where web graphics should be rendered (cef, qt5, browser...)

Definition at line 127 of file TROOT.h.

Libraries for TROOT:

[legend]

The documentation for this class was generated from the following files:

core/base/inc/TROOT.h
core/base/src/TROOT.cxx

Example of a main program

Public Types

Public Member Functions

Static Public Member Functions

Protected Types

Protected Member Functions

Protected Attributes

Private Member Functions

Private Attributes

Static Private Attributes

Friends

Additional Inherited Members

Member Typedef Documentation

◆ AListOfEnums_t

◆ FwdDeclArgsToKeepCollection_t

Constructor & Destructor Documentation

◆ TROOT() [1/3]

◆ TROOT() [2/3]

◆ TROOT() [3/3]

◆ ~TROOT()

Member Function Documentation

◆ AddClass()

◆ AddClassGenerator()

◆ AddExtraInterpreterArgs()

◆ Append()

◆ Browse()

◆ Class()

◆ Class_Name()

◆ Class_Version()

◆ ClassSaved()

◆ CloseFiles()

◆ ConvertVersionCode2Int()

◆ ConvertVersionInt2Code()

◆ DeclFileName()

◆ DecreaseDirLevel()

◆ EndOfProcessCleanups()

◆ FindObject() [1/2]

◆ FindObject() [2/2]

◆ FindObjectAny()

◆ FindObjectAnyFile()

◆ FindObjectClassName()

◆ FindObjectPathName()

◆ FindSpecialObject()

◆ FindSTLClass()

◆ ForceStyle()

◆ FromPopUp()

◆ GetApplication()

◆ GetBinDir()

◆ GetBuiltDate()

◆ GetBuiltTime()

◆ GetClass() [1/2]

◆ GetClass() [2/2]

◆ GetClipboard()

◆ GetColor()

◆ GetConfigFeatures()

◆ GetConfigOptions()

◆ GetCutClassName()

◆ GetDataDir()

◆ GetDefCanvasName()

◆ GetDirLevel()

◆ GetDocDir()

◆ GetEditHistograms()

◆ GetEditorMode()

◆ GetEtcDir()

◆ GetExtraInterpreterArgs()

◆ GetFile() [1/2]

◆ GetFile() [2/2]

◆ GetForceStyle()

◆ GetFunction()

◆ GetFunctionTemplate()

◆ GetGeometry()

◆ GetGitBranch()

◆ GetGitCommit()

◆ GetGitDate()

◆ GetGlobal() [1/2]

◆ GetGlobal() [2/2]

◆ GetGlobalFunction()

◆ GetGlobalFunctions()

◆ GetGlobalFunctionWithPrototype()

◆ GetIconPath()