A backend event that fires when a forum post is closed.
The onPostClosed() event handler runs when an existing forum post in your site is closed.
When a forum post is closed, members can't comment on the post.
The received ClosedPost object contains information about the post that was closed.
Notes:
By default, forum posts are open.
Backend events are not fired when previewing your site.
Information about the forum post that was closed.