(Swift) Transition from Email.CreateMdn to Email.ToMdn

Provides instructions for replacing deprecated CreateMdn method calls with ToMdn.

Note: This example requires Chilkat v11.0.0 or greater.

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func chilkatTest() {
    let email = CkoEmail()!

    // ...
    // ...

    var explanation: String? = "..."
    var statusFieldsXml: String? = "..."
    var headerOnly: Bool = false

    // ------------------------------------------------------------------------
    // The CreateMdn method is deprecated:

    var emailObj: CkoEmail? = email.createMdn(explanation, xmlMdnFields: statusFieldsXml, bHeaderOnly: headerOnly)
    if email.lastMethodSuccess == false {
        print("\(email.lastErrorText!)")
        return
    }

    // ...
    // ...

    emailObj = nil

    // ------------------------------------------------------------------------
    // Do the equivalent using ToMdn.
    // Your application creates a new, empty Email object which is passed 
    // in the last argument and filled upon success.

    let emailOut = CkoEmail()!
    var success: Bool = email.toMdn(explanation, statusFields: statusFieldsXml, headerOnly: headerOnly, mdn: emailOut)
    if success == false {
        print("\(email.lastErrorText!)")
        return
    }


}