Sure. I used the bbp_new_topic_pre_content Filter Hook and the code I used is as under:
//code to limit number of characters in topic contents to 500 characters
function tm_limit_topic_content( $topic_content )
{
/* Check for number of characters in topic contents */
if (strlen($topic_content) > 500) {
$revised_content = substr($topic_content, 0, 500);
}
else {
$revised_content = $topic_content ;
}
return $revised_content ;
}
add_filter( 'bbp_new_topic_pre_content', 'tm_limit_topic_content' );
Never mind. After some trial and error, I have been able to find out the relevant filter hook and achieved the goal. Thanks.