DataFlex

Get the Content-Type of a Related Item

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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DataFlex

Use ChilkatAx-win32.pkg

Procedure Test
    Handle hoEmail
    String sCt

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

    Get Create (RefClass(cComChilkatEmail)) To hoEmail
    If (Not(IsComObjectCreated(hoEmail))) Begin
        Send CreateComObject of hoEmail
    End
    Set ComSubject Of hoEmail To "GetRelatedContentType example"

    //  The HTML references the style sheet by name (Content-Location).
    Send ComSetHtmlBody To hoEmail '<html><head><link rel="stylesheet" href="styles.css"/></head><body>Styled.</body></html>'

    //  Add the related style sheet (index 0).
    Send ComAddRelatedString2 To hoEmail "styles.css" "body { color: navy; }" "utf-8"

    //  Read the Content-Type of the first related item (index 0).
    Get ComGetRelatedContentType Of hoEmail 0 To sCt
    Showln "Related item 0 Content-Type: " sCt


End_Procedure