Getting the color pallete without calling LoadCT first

[Ricardo Fonseca <zamb(at)physics.ucla.edu>]

Hi

I need to get the color table from one of the default IDL colortables. Right
now I'm doing it like this:

  loadct, ct, NCOLORS = 256
  TVLCT, rr, gg, bb, /get

I was wondering I there was a way to do this without actually loading the
color pallete i.e. without calling loadct

Thanks in advance, Ricardo