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Return information about the next article available in the current
newsgroup.
Syntax
object.GetNextArticle( Article,
[Subject], [Author], [Posted],
[MessageId], [References], [ByteCount],
[LineCount] )
Parameters
- Article
- An integer value which specifies the article ID. This is the
number that should be used to access the article on the
server. This parameter is required and must be passed by reference.
- Subject
- An optional string which specifies the subject of the article.
This parameter must be passed by reference, or it may be omitted if
the program does not require this information.
- Author
- An optional string which specifies the author of the article.
This is typically the name and email address of the user who posted
the article. This parameter must be passed by reference, or it may
be omitted if the program does not require this information.
- Posted
- An optional string which specifies the date that the article was
posted. This parameter must be passed by reference, or it may be
omitted if the program does not require this information.
- MessageId
- An optional string which specifies the message ID for the article.
Although it is more common to reference an article by number, it is
possible to reference an article by its message ID. To select a
message by its message ID string, set the MessageID property.
This parameter must be passed by reference, or it may be omitted if
the program does not require this information.
- References
- An optional string which specifies references to the article. This
can be used by an application to create a list of cross references to
the article so that related threads can be provided to the user. This
parameter must be passed by reference, or it may be omitted if the
program does not require this information.
- ByteCount
- An optional integer value which specifies the size of the message
in bytes. This parameter must be passed by reference, or it may be
omitted if the program does not require this information.
- LineCount
- An optional integer value which specifies the number of lines of
text in the message. This parameter must be passed by reference, or
it may be omitted if the program does not require this information.
Return Value
A value of true is returned if the operation was successful,
otherwise a return value of false indicates that there are no more
articles available in the currently selected newsgroup.
Remarks
The GetNextArticle method returns information about the
next available article in the currently selected newsgroup. This
method is used in conjunction with the GetFirstArticle method
to enumerate all of the articles in the newsgroup. Typically this is
used to provide the user with a list of articles to access.
While the articles in the newsgroup are being listed, the client
cannot retrieve the contents of a specific article. For example, the
GetArticle method cannot be called while inside a loop calling
GetNextArticle. The client should store those articles which
it wants to retrieve in an array, and then once all of the articles
have been listed, it can begin calling GetArticle for each
article number to retrieve the article text.
A program should use either the ListArticles method or the
GetFirstArticle and GetNextArticle methods, but never
in combination with one another.
Example
Dim nArticleId As Long
Dim strSubject As String
Dim strAuthor As String
Dim datePosted As Date
Dim strMessageId As String
Dim strReferences As String
Dim nByteCount As Long
Dim nLineCount As Long
Dim bResult As Boolean;
' List each article in the current newsgroup, adding the subject to
' a ListBox control
bResult = NntpClient1.GetFirstArticle(nArticleId, strSubject, strAuthor, _
datePosted, strMessageId, strReferences, _
nByteCount, nLineCount);
Do While bResult
List1.AddItem strSubject
List1.ItemData(List1.NewIndex) = nArticleId
bResult = NntpClient1.GetNextArticle(nArticleId, strSubject, strAuthor, _
datePosted, strMessageId, strReferences, _
nByteCount, nLineCount);
End Do
See Also
Article Property,
MessageID Property,
GetFirstArticle Method,
ListArticles Method,
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