ForumSubscribeNewMessages

bool
ForumSubscribeNewMessages(
 int FID,
 int TID,
 &string strErrorMessage,
 &string strOKMessage
);

Subscribes the current visitor to new messages of the specified forum topic (if specified), or to all messages of the entire forum.

Parameter	Description
FID	The ID of the forum to whose messages the current user wants to subscribe.
TID	The ID of the forum topic. If specified, the user is subscribed to new messages of this topic only.
strErrorMessage	On return, this variable contains description of errors, if any occurs.
strOKMessage	On return, this variable contains description of the successful run.

Returns true on success or false otherwise.