ll, it <em>must</em> be made <em>once</em> for each
    Scintilla document that was created using Scintilla's
    <a class="message" href="ScintillaDoc.html#SCI_CREATEDOCUMENT"><code>SCI_CREATEDOCUMENT</code></a>.
    You must also use the
    <a class="message" href="#SCI_SETDOCPOINTER"><code>SCI_SETDOCPOINTER</code></a> LPeg lexer
    API call.</p>

    <p>Usage:</p>

    <pre><code>
    fn = SendScintilla(sci, SCI_GETDIRECTFUNCTION, 0, 0)
    SendScintilla(sci, SCI_PRIVATELEXERCALL, SCI_GETDIRECTFUNCTION