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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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llSuccess = .F.

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

loEmail = createobject("CkEmail")
loEmail.Subject = "Set attachment disposition"

loEmail.AddStringAttachment("image.txt","(pretend inline content)")

//  Set the disposition of the first attachment (index 0) to "inline".
llSuccess = loEmail.SetAttachmentDisposition(0,"inline")
if (llSuccess = .F.) then
    ? loEmail.LastErrorText
    release loEmail
    return
endif

//  The attachment's Content-Disposition is now "inline".
? loEmail.GetMime()


release loEmail