Re: [ROOT] TCAnvas bug, and questions

From: Valeri Fine (fine@bnl.gov)
Date: Wed Dec 19 2001 - 03:11:24 MET


> Hi rooters,
> 
> a few questions to TCAnvas:
> 
> 1.) there seems to be a bug, when I create a histogram
> it does not take the whole canvas. On the bottom there
> is approx. 0,5 cm "window" where whatever application
> is behind shines through.

 I suspect you are running your own ROOT-like Windows based application.
 By some reason that 0.5 cm band is not filled with a "status bar" properly. 
 The later may not have been created or painted .

> 
> 2.) I need a PLAIN canvas without menu line, is it
> possible to "switch of" the menu line ?
> 
> 3.) Is there a way to place a canvase at a specific
> location on the desktop and catch "canvas move" events
> to make sure the user does not move it do a wrong
> location ?
 
> All questions are for the WINDOWS version.
> 

  I believe so-called ActiveROOT application is a good example 
  how the points above can  be achieved.
  (see: http://d0.phys.washington.edu/~haas/winroot/index.html )

> 4.) Is there any progress in TCanvas/Qt ? 

  I think so.

> I.e. is it possible to place a canvas on a Qt form ?

   I believe  it is possible (why not). 
   There is no technical problem to bring in Qt or what so ever.
   See: http://www-linux.gsi.de/~go4/qtroot/doc/index.html

   The only problem by now,  one still has to implement this 
   on his/her own ( or ask some software company to do this job :-)
   It should not be a problem for you since your applications are not
   High Energy Physics related are they ?

   The problem is to find a fund to do that and to maintain it in future.
   In fact the last point is crucial.
   So it is a business problem rather the technical one. 

   The main physics work horse is a Linux box nowadays. 
   That is ;-(

                                  Valeri



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