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Check if a MIME Part is an Attachment

Demonstrates the Chilkat Mime.IsAttachment method, which returns whether the current part's Content-Disposition is attachment (matched case-insensitively). It takes no arguments.

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

Background: Whether a part is an attachment is about disposition, not content type — an image can be inline (Content-Disposition: inline) or an attachment. This predicate keys off that header, which is the right basis for deciding what to list as a downloadable attachment versus what to render within the message body.

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Local $bSuccess = False

;  Demonstrates the Mime.IsAttachment method, which returns whether the part's Content-Disposition is attachment.  It takes no arguments and applies to the current
;  part.  This example iterates the parts of a multipart message and reports which ones match.

$oMime = ObjCreate("Chilkat.Mime")
$bSuccess = $oMime.LoadMimeFile("qa_data/multipart_message.eml")
If ($bSuccess = False) Then
    ConsoleWrite($oMime.LastErrorText & @CRLF)
    Exit
EndIf

Local $iN = $oMime.NumParts
$oPart = ObjCreate("Chilkat.Mime")
Local $i
For $i = 0 To $iN - 1
    $bSuccess = $oMime.PartAt($i,$oPart)
    If ($bSuccess = False) Then
        ConsoleWrite($oMime.LastErrorText & @CRLF)
        Exit
    EndIf

    If ($oPart.IsAttachment()) Then
        ConsoleWrite("Part " & $i & " (" & $oPart.ContentType & ") is an attachment." & @CRLF)
    EndIf

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