ot yet been upgraded to the general position adjustments format.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>dx</CODE> - an array of adjustments to the current x position prior to rendering
 individual glyphs or null<DD><CODE>count</CODE> - if <code>dx</code> is not null, then a count of dx values to convert
<DT><B>Returns:</B><DD>if <code>dx</code> is not null, then an array of 4-tuples, expressing [X,Y]
 placment adjustments and [X,Y] advancement adjustments, in that order; otherwise, null</DL>
</DD>
</D