PEAR - linking Pager and Structures_DataGrid

[simulant]

This is from the PEAR documentation for the Structures_DataGrid package:

Example 46-3. Bind datagrid to a DB_Result Object with Database paging
<?php
$dg =& new Structures_DataGrid();

$result = $db->query("SELECT * FROM person WHERE hair='red' AND has_glasses=1 LIMIT 20");

// The datagrid will bind the db_result object and show all of the first 20 records
// In order to use paging, you must use a seperate Pager object.
$dg->bind($result);

$dg->render();
?>

I want to use the Pager object to implement paging in conjunction with the DataGrid, but how do you link the two objects together??

Does anyone have a working example of this?

Thanks.

[simulant]

this is how you do it apparently:

echo $dg->renderer->getPaging();

getPaging() returns the $links array of the Pager object.