Get the Content-Type of a Related Item

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Demonstrates the Chilkat Email.GetRelatedContentType method, which returns the Content-Type of the Nth related content item in an email. The index is zero-based. This example adds a related style sheet and reads its content type.

Background: Each related item declares a Content-Type — image/png for an inline image, text/css for a style sheet, and so on — that tells the rendering client how to use it. Reading the content type lets a program enumerate a message's embedded resources and act on them by kind, for example collecting every inline image while ignoring the style sheets.

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    //  Demonstrates the GetRelatedContentType method, which returns the Content-Type of the Nth
    //  related content item in an email.  The index is zero-based.

    email := chilkat.NewEmail()
    email.SetSubject("GetRelatedContentType example")

    //  The HTML references the style sheet by name (Content-Location).
    email.SetHtmlBody("<html><head><link rel=\"stylesheet\" href=\"styles.css\"/></head><body>Styled.</body></html>")

    //  Add the related style sheet (index 0).
    email.AddRelatedString2("styles.css","body { color: navy; }","utf-8")

    //  Read the Content-Type of the first related item (index 0).
    ct := email.GetRelatedContentType(0)
    fmt.Println("Related item 0 Content-Type: ", *ct)

    email.DisposeEmail()