get

Gets all of the scaling values.

• (send a-wx:mult-colour get r g b) -> void
      r : boxed inexact real
      g : boxed inexact real
      b : boxed inexact real

  The r box is filled with the scaling value for the red component of the colour. The g box is filled with the scaling value for the green component of the colour. The b box is filled with the scaling value for the blue component of the colour.