Swift

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.

Chilkat Swift Downloads

Download Chilkat for Swift

Swift


func chilkatTest() {
    var success: Bool = 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".

    let email = CkoEmail()!
    email.subject = "Set attachment disposition"

    email.addStringAttachment(fileName: "image.txt", str: "(pretend inline content)")

    //  Set the disposition of the first attachment (index 0) to "inline".
    success = email.setAttachmentDisposition(index: 0, disposition: "inline")
    if success == false {
        print("\(email.lastErrorText!)")
        return
    }

    //  The attachment's Content-Disposition is now "inline".
    print("\(email.getMime()!)")

}