Re: [ROOT] Writing Histos to a File

From: Valeri Fine (fine@bnl.gov)
Date: Wed Jan 16 2002 - 18:38:22 MET


Ok, thank you.

                            Valeri
-----
Dr.Valeri Fine
STAR/US Atlas                                    E-mail: fine@bnl.gov
Brookhaven National Lab                    Phone:  +1 631 344 7806
Upton, NY 11973-5000                       FAX:     +1 631 344 4206
USA



----- Original Message ----- 
From: "Aldo F Saavedra" <AFSaavedra@lbl.gov>
To: "Rene Brun" <Rene.Brun@cern.ch>
Cc: "Roottalk@Pcroot. Cern. Ch" <roottalk@pcroot.cern.ch>
Sent: Tuesday, January 15, 2002 8:35 PM
Subject: Re: [ROOT] Writing Histos to a File


> Hi Rene,
> 
> I have just found out that the reason we could not
> write a histogram successfully was because
> the VC++ 6.0 was installed without any of the
> service packs. I just installed service pack 5.0
> which I downloaded from the microsoft site.
> Everything works in our Pixel_RootQT application
> as expected.
> 
> Thanks for your help.
> 
> Aldo.
> 
> > > On Sat, 12 Jan 2002 jcfree@socrates.Berkeley.EDU wrote:
> > >
> > > >
> > > > I've been having a lot of trouble writing histograms to a file in my
> > > > program. I'm using VC++ 6 on Windows 2000, and am using the QT libraries
> > > > for my GUI interface. Even the simplest code doesn't seem to work, e.g.,
> > > >
> > > > TFile* file = new TFile("e:\\rt\\testfile.root","UPDATE");
> > > > TH1S* testhisto = new TH1S("histo","histo",100,0,100);
> > > > testhisto->Write();
> > > > file->Close();
> > > >
> > > > will cause the program to indicate "Abnormal program termination" when
> > > > execution reaches the "testhisto->Write()" line. Can anyone help me out?
> > > >
> > > >                             Thanks,
> > > >
> > > >                                     John
> 
> 
> --
> ***********************************************************
>  ATLAS Experiment - Pixel Group (Physics Division)
>  Lawrence Berkeley National Laboratory
> 
>                           Aldo F. Saavedra
>  Email:                AFSaavedra@lbl.gov
>  Phone:               1 510 486 4690
>  Postal Address: Lawrence Berkeley National Laboratory
>                           1 Cyclotron Rd Mailstop 50B-6208
>                           Berkeley, CA 94720
>                           USA
> 
> 



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