MIME Multipart Boundary and Preamble Properties

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Demonstrates the Boundary property, which gets or sets the raw boundary token of a multipart entity (without surrounding quotation marks), and UseMmDescription, which controls whether the conventional preamble text is emitted when serializing a multipart entity.

    success := false

    mime := chilkat.NewMime()

    //  Create a multipart/mixed entity.
    success = mime.NewMultipartMixed()
    if success == false {
        fmt.Println(mime.LastErrorText())
        mime.DisposeMime()
        return
    }

    //  Boundary is the raw boundary token, without surrounding quotation marks.  Chilkat quotes it
    //  automatically in the serialized header when required.
    mime.SetBoundary("example-boundary")

    //  UseMmDescription controls whether the conventional preamble text
    //  "This is a multi-part message in MIME format." is emitted.  The default is false.
    mime.SetUseMmDescription(true)

    //  Add a simple part so the multipart has content.
    part := chilkat.NewMime()
    success = part.SetBodyFromPlainText("First part.")
    if success == false {
        fmt.Println(part.LastErrorText())
        mime.DisposeMime()
        part.DisposeMime()
        return
    }

    success = mime.AppendPart(part)
    if success == false {
        fmt.Println(mime.LastErrorText())
        mime.DisposeMime()
        part.DisposeMime()
        return
    }

    fmt.Println("Boundary = ", mime.Boundary())

    mimeStr := mime.GetMime()
    if mime.LastMethodSuccess() == false {
        fmt.Println(mime.LastErrorText())
        mime.DisposeMime()
        part.DisposeMime()
        return
    }

    fmt.Println(*mimeStr)

    mime.DisposeMime()
    part.DisposeMime()