Boolean - True on success, False on protocol or server error.

GetHeader is an overloaded Boolean function in TIdNNTP used to retrieve message headers for an NNTP article. GetHeader calls SendCmd using the NNTP HEAD command to retrieve message headers. 

AMsg is a TStrings instance where the headers for the NNTP article should be stored. 

The overloaded function provides for retrieving the headers for an article using the NNTP current article pointer. The current article pointer must be set prior to calling GetHeader. 

When TStrings is used as the destination, GetHeader clears the contents of the message using TStrings.Clear and calls Capture using AMsg as an argument. 

The return value for GetHeader is True when the numeric response from SendCmd is 221. GetBody will return False if any of the following responses are received: 

Use SelectGroup to select the active newsgroup before prior to calling GetHeader. 

Use SelectArticle to set the current article pointer for the active newsgroup. 

Use GetNewNewsList to get a list of articles added since a specified date and time. 

Use GetBody to retrieve the body lines for a specific NNTP article. Use GetArticle to retrieve the entire contents of a specific NNTP article. 

Use XHDR to get specific header values for one or more NNTP articles. 

Use XOVER to get information from the overview database for one or more NNTP articles.

TIdMessage SelectGroup SelectArticle GetNewNewsList GetHeader GetBody GetArticle XOVER