Adding template parameters via a template-hook

[-Ice-]

I was wondering if it's possible to add template parameters via a template hook listener function.

This hangs forever (inside the template hook listener):

$template->setParam("stream_num", 5);
$templateNew = $template->create('ice_livestream_forumdisplay', $template->getParams());
$contents = $templateNew->render();

The hook is in the same template as the template I want to add the parameters to, is this a problem?

Thanks in advance

Edit: Just realized I was going about this wrong. I now have just the <xen:hook> in the "forum_list" template, without a <xen:include> This works:

if($hookName == 'ice_livestreams_display'){
    $newParams = array("stream_num"=> 5);
    $template->setParams($newParams);
    $templateNew = $template->create('ice_livestream_forumdisplay', $template->getParams());
    $contents .= $templateNew->render();
}

Sorry