Hi Aldo, Implementing a class deriving from THistPainter is OK. The class TMyHistoPainter should work. It must be known to ROOT and CINT at run time. As explained by Axel, you have to create a small dictionary for this class. I am just curious to know why you want to create your own HistPainter? -missing functionality in the default painter? -a feature you do not like? Rene Brun "Aldo F. Saavedra" wrote: > > Hi, > > I was wondering if someone could help me with the > following. I found you could set your own > painting class using SetPainter function. > > So in my code I have included the following: > TVirtualHistPainter::SetPainter("TMyHistoPainter"); > > The TMyHistoPainter class is derived from > THistPainter as shown in the code below. > > The problem is that I had not being able > to set the name to TMyHistoPainter class > to "TMyHistoPainter" . > > One tactic that I tried was > to let TMyHistoPainter > inherit TNamed which contains functions > that allow you to set the classname. > But during the compilation I had > the message that the delete function > was ambiguous. I think both functions > had the implemented the function. > > So my question is how to name TMyHistoPainter > class "TMyHistoPainter". > > At the moment I'm using 3.05/05 in windows. > > Any ideas would be greatly appreciated. > > // a bit of the code > // definition of the class > #include "THistPainter.h" > #include "Rtypes.h" > > class TMyHistoPainter: public THistPainter > { > > public: > TMyHistoPainter(); > > ClassDef(TMyHistoPainter,0) > > }; > > // implementation of the class > > ClassImp(TMyHistoPainter) > > TMyHistoPainter::TMyHistoPainter():THistPainter() > {// the constructor > > } > > *********************************************************** > Aldo F. Saavedra > ATLAS Collaboration - Pixel Group (Physics Division) > Lawrence Berkeley National Laboratory > > Email: AFSaavedra@lbl.gov > Phone: 1 510 486 4690 > Fax: 1 510 486 5101 > Postal Address: Lawrence Berkeley National Laboratory > 1 Cyclotron Rd Mailstop 50B-62222 > Berkeley, CA 94720 > USA > ***********************************************************
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