Swift

Add a Related Item from BinData by Content-Location

Demonstrates the Chilkat Email.AddRelatedBd2 method, which adds a related item using the binary data in a BinData object, addressed by Content-Location. The second argument specifies the filename, path, or URL used by the corresponding HTML reference. This example embeds an image referenced as logo.png.

Background: This is the binary counterpart of AddRelatedString2 and the Content-Location sibling of AddRelatedBd. Instead of a generated cid: reference, the HTML keeps an ordinary src="logo.png" and the related part is matched to it by name — convenient when turning an existing web page into an email so its original relative URLs keep working.

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Swift


func chilkatTest() {
    var success: Bool = false

    //  Demonstrates the AddRelatedBd2 method, which adds a related item using the binary data in
    //  a BinData object, addressed by Content-Location.  The second argument specifies the filename/path/URL
    //  used by the corresponding HTML reference.

    let email = CkoEmail()!
    email.subject = "Related image from BinData (Content-Location)"

    //  The HTML references the image by the same name used as the Content-Location.
    email.setHtmlBody(html: "<html><body><img src=\"logo.png\"/></body></html>")

    //  Load the image data from a file into a BinData object.
    let bdImage = CkoBinData()!
    success = bdImage.loadFile(path: "qa_data/images/logo.png")
    if success == false {
        print("\(bdImage.lastErrorText!)")
        return
    }

    //  Add the image as a related item addressed by Content-Location "logo.png".
    success = email.addRelatedBd2(binData: bdImage, fileNameInHtml: "logo.png")
    if success == false {
        print("\(email.lastErrorText!)")
        return
    }

    print("NumRelatedItems = \(email.numRelatedItems.intValue)")

    //  Note: The path "qa_data/images/logo.png" is a relative local filesystem path,
    //  relative to the current working directory of the running application.

}