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Now, all that remains is to define the drawing method, displayOn:,
that actually displays the meter using VisualWorks. The details are
tedious, but overall, the drawing method is much like the one developed for
Smalltalk Express, provided in Appendix••missing reference••.
The key differences are explained in the next few segments. Other, less important differences are explained, and a complete display method is presented, in Appendix••missing reference••.