Gets the color lookup table, which is ColorComponents *(HiVal + 1) bytes long, where ColorComponents = number of components in the base color space.
Each entry in the table contains ColorComponents bytes, and the table is indexed 0 to HiVal, where HiVal is the highest index in the color table. The table is indexed from 0 to HiVal, thus the table contains HiVal + 1 entries.
GetCTable() As IGIntegerArray