Re: [ROOT] Colours

From: Simon Dean (sdean@hep.man.ac.uk)
Date: Fri Aug 09 2002 - 23:22:28 MEST


Hi Fons,

Thanks for the reply, although it did not solve the problem. You see, the
tutorial you quote deals with TCanvas and TPad, both classes which inherit
from TAttFill. This class uses the TColor system and is very user-friendly
and nice. My original problem, however, was that TGFrame does not inherit
from TAttFill and instead takes an ULong_t as an argument to specify the
background colour. 

I can't find a way of translating between a TColor and the equivalent
ULong_t pixel number. Is there such a system?

Thanks a lot,

Simon

On 9 Aug 2002, Fons Rademakers wrote:

> Yes it is possible, check $ROOTSYS/tutorials/greyscale.C.
> 
> Cheers, Fons.
> 
> 
> 
> On Thu, 2002-08-08 at 21:08, Simon Dean wrote:
> > Hello,
> > 
> > I would like to make a TH1F and a TGFrame the same colour. This seems to
> > be impossible because TH1s use the TColor scheme and TGFrames require a
> > pixel number. Is it possible?
> > 
> > cheers,
> > 
> > Simon
> 



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