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Set the Content-Disposition of an Attachment

Demonstrates the Chilkat Email.SetAttachmentDisposition method, which sets the Content-Disposition value for the attachment at a given zero-based index. The default disposition is attachment. This example changes an attachment's disposition to inline.

Background: The Content-Disposition header hints how a client should present a part: attachment means "offer it as a download," while inline means "display it within the message" (as an email client does with an embedded image). Setting it lets you control that behavior — though clients ultimately decide how to honor the hint.

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Local $bSuccess = False

;  Demonstrates the SetAttachmentDisposition method, which sets the Content-Disposition
;  value for the attachment at the given zero-based index.  The default disposition is
;  "attachment".

$oEmail = ObjCreate("Chilkat.Email")
$oEmail.Subject = "Set attachment disposition"

$oEmail.AddStringAttachment("image.txt","(pretend inline content)")

;  Set the disposition of the first attachment (index 0) to "inline".
$bSuccess = $oEmail.SetAttachmentDisposition(0,"inline")
If ($bSuccess = False) Then
    ConsoleWrite($oEmail.LastErrorText & @CRLF)
    Exit
EndIf

;  The attachment's Content-Disposition is now "inline".
ConsoleWrite($oEmail.GetMime() & @CRLF)