Painting histograms

From: Ulrich Husemann (husemann@physik.uni-dortmund.de)
Date: Thu Nov 11 1999 - 16:53:59 MET


Dear Rooters!

I try to write a macro to paint several histograms into different pads in
a canvas. The procedure is the following:
1) create pads
2) pad.cd();
3) book histogram
4) Draw contents of some root file and pipe them into the histogram

If I stop here, nothing is painted. 

But if I do a

gPad->Update();

I can see the histogram for a few milliseconds before it is gone (the
frames and the stat box are still there).

Ulrich



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