Visual Basic 6.0

Get a Summary of the MIME Structure

Demonstrates the Chilkat Mime.GetStructure method, which returns a concise summary of the MIME tree. The only argument selects the format: xml for XML, or text (the default for any other value) for a plain-text outline.

Note: The file paths are relative to the application's current working directory. Absolute paths may also be used. Supply the paths appropriate to your own environment.

Background: A real message can nest multipart containers several levels deep — a multipart/mixed holding a multipart/alternative of text and HTML plus attachments — and GetStructure renders that hierarchy at a glance without the full content. It is the fast way to understand or debug an unfamiliar message's layout, in either a readable text outline or machine-parseable XML.

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Visual Basic 6.0

Dim success As Long
success = 0

'  Demonstrates the Mime.GetStructure method, which returns a concise summary of the MIME tree.
'  The only argument selects the output format: "xml" for XML, or "text" (the default) for a
'  plain-text outline.

Dim mime As New ChilkatMime

success = mime.LoadMimeFile("qa_data/multipart_message.eml")
If (success = 0) Then
    Debug.Print mime.LastErrorText
    Exit Sub
End If

'  Get a human-readable text outline of the MIME structure.
Dim structure As String
structure = mime.GetStructure("text")
If (mime.LastMethodSuccess = 0) Then
    Debug.Print mime.LastErrorText
    Exit Sub
End If

Debug.Print structure