Re: Crash in TBrowser when inspecting converted HBOOK ntuple

From: Valery Fine (fine@mail.cern.ch)
Date: Fri Oct 10 1997 - 21:32:45 MEST 

On 10 Oct 97 at 9:48, Gordon Watts (Brown Universit wrote:


> 1) Given an ntuple file written in HBOOK, create a root file with
> the h2root program. 
> 2) TFile f ("filename.root"); 
> 3) TBrowser b;

  There are some problems with Windows since Windows needs ROOT as
multithread application. Under UNIX it is a single thread so far. As 
workaround try as follows:

 TFile f ("filename.root"); 
 TCanvas c1("c1");
 TBrowser b;


  I.e. one TCanvas object must be opened to proceed with TBrowser.  

> Also, just click around for a while, in the left and right panels, 
> and try to navagate in a file that has both histograms and ntuples. 
> I fine the behavior quite inconsistant... :-)

  What did you mean, please let us an example?

  Tell me whether it helps you.
                        Valery
Dr. Valeri Faine (Valery Fine)
    ------------ -------------   Phone: +41 22 767 4921
CERN                             FAX  : +41 22 767 7155
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