Visual Basic 6.0

Create a multipart/related MIME Entity

Demonstrates the Chilkat Mime.NewMultipartRelated method, which initializes the object as an empty multipart/related entity. It takes no arguments; the primary part and its related resources are then appended.

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: multipart/related ties a primary part to the resources it references — most commonly an HTML body and the inline images it embeds via cid: references. Unlike a plain attachment, a related image is displayed within the message rather than listed separately. The HTML part comes first, followed by each referenced resource with a matching Content-ID.

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Visual Basic 6.0

Dim success As Long
success = 0

'  Demonstrates the Mime.NewMultipartRelated method, which initializes the object as an empty
'  multipart/related entity, clearing any existing content.  It takes no arguments.

Dim mime As New ChilkatMime

success = mime.NewMultipartRelated()
If (success = 0) Then
    Debug.Print mime.LastErrorText
    Exit Sub
End If

'  multipart/related groups a primary part with the resources it references, such as an HTML body
'  and the inline images it displays.
Dim htmlPart As New ChilkatMime
success = htmlPart.SetBodyFromHtml("<html><body><img src=""cid:logo""></body></html>")
If (success = 0) Then
    Debug.Print htmlPart.LastErrorText
    Exit Sub
End If

success = mime.AppendPart(htmlPart)
If (success = 0) Then
    Debug.Print mime.LastErrorText
    Exit Sub
End If

success = mime.AppendPartFromFile("qa_data/logo.png")
If (success = 0) Then
    Debug.Print mime.LastErrorText
    Exit Sub
End If

Debug.Print "Number of parts: " & mime.NumParts