 0 to 31 whose appearance has been defined using the
      SCI_STYLESET... messages.
    </p>
    <h2>
       Implementing Calltips
    </h2>
    <p>
       Again, the SCN_CHARADDED notification is used to catch when an opening parenthesis is added.
      The preceding word can then be retrieved from the current line:
    </p>
    &nbsp;&nbsp;&nbsp;&nbsp;<span class='S5'>char</span><span class='S0'>&nbsp;</span> <span
    class='S11'>linebuf</span><span class='S10'>[</span><span class='S4'>1000</span><span
