OnNewNewsList is a TEventNewNewsList property that represents the event handler signalled on receipt of values in the new articles list from GetNewNewsList. 

OnNewNewsList is used when GetNewNewsList is called without a TStrings argument used as the destination of the new article listing. OnNewNewsList will be triggered once for each article received in a response line from the NNTP server in GetNewNewsList. 

Applications must assigned a procedure to the event handler when TStrings is not used to store the new article listing. If the event handler is unassigned, an EIdNNTPNoOnNewNewsList exception will be raised. The event handler can be used to update display or storage aspects of the NNTP client when new articles message identifiers are received. 

Setting ACanContinue to False stops retrieval of the new article list.

GetNewNewsList TEventNewNewsList EIdNNTPNoOnNewNewsList