As of July 19, 2000, OX_API wavetable support has not yet been implemented. However, in all likelihood it will take the form of a function accepting a wave number and returning a pointer to the buffer, as well as its size.
Additional functions may also accept a volume and note-number, and returning a different wave depending on those values. This will allow so-called velocity mapping and keyboard-range mapping for waves, as well as anything else cool we can think of.