TColor problem?

Hello ROOTers,

I attache a short macro which shows younger students in my lab how to use different color palettes.

When I run it using ACLiC, it works as I expected. But I have two problems. I still do not know which lines cause this problems.

$ root -n
root [0] .x color.C+ <= runs properly
Info in <TUnixSystem::ACLiC>: creating shared library /Users/oxon/./ color_C.so

$ root -n
root [0] .x color.C <= fails
Error: non class,struct,union object $gPad used with . or -> color.C:68: *** Interpreter error recovered ***

My questions are;

Q1. I do not know why I cannot access gPad when I use CINT. What is the problem in my macro?

Q2. The process of root.exe becomes slowly (i.e. high CPU load), when I execute the macro with ACLiC many times. What is the reason and how can I remove it?

e.g. try

root [0] .x color.C+
root [1] .x color.C+
root [2] .x color.C+
root [3] .x color.C+
root [4] .x color.C+
root [5] .x color.C+
root [6] .x color.C+

I am using
- ROOT 5.24.00 + Mac OS X 10.5.8 (intel) - ROOT 5.24.00 + SL 4.6 (64 bit)

Thank you in advance.

Regards,

OKUMURA, Akira oxon_at_juno.phys.s.u-tokyo.ac.jp Department of Physics, The University of Tokyo 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033
TEL/FAX +81 3-5841-4173/4059
Skype : okumura.akira