12
$block.lang_inbox & $block.new_messages are not available in themes.html.
This snippet works:
<{php}>
GLOBAL $xoopsUser;
$pm_handler =& xoops_gethandler('privmessage');
$uid = $xoopsUser->getVar('uid');
$criteria = new CriteriaCompo(new Criteria('read_msg', 0));
$criteria->add(new Criteria('to_userid', $uid));
$msgcount = $pm_handler->getCount($criteria);
$GLOBALS['xoopsTpl']->assign('msgcount', $msgcount);
<{/php}>
<{if $msgcount > 0}>
<a class="highlight" href="<{$xoops_url}>/viewpmsg.php">Inbox (<span style="color:#ff0000; font-weight: bold;"><{$msgcount}></span>)</a>
<{else}>
<a href="<{$xoops_url}>/viewpmsg.php">Inbox</a>
<{/if}>
Cheers,
Jens