Get the Filename of an Attachment

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Demonstrates the Chilkat Email.GetAttachmentFilename method, which retrieves an attachment's filename as stored in the MIME. The index is zero-based. This example adds an attachment and reads its filename.

Background: An attachment's filename comes from the sender's message and is not guaranteed to be safe or unique — it may include path separators or characters that are awkward on the local filesystem, and two attachments can share a name. When saving attachments to disk, treat this value as untrusted input: sanitize it and guard against collisions (see the OverwriteExisting property, which can auto-generate unique names).

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    //  Demonstrates the GetAttachmentFilename method, which retrieves an attachment's filename
    //  (as stored in the MIME).  The index is zero-based.

    email := chilkat.NewEmail()
    email.SetSubject("Attachment filename")

    email.AddStringAttachment("notes.txt","Some notes.")

    //  Get the filename of the first attachment (index 0).
    fname := email.GetAttachmentFilename(0)
    fmt.Println("Attachment 0 filename: ", *fname)

    email.DisposeEmail()