DataFlex

Get the Nth Text Part of a Given Content-Type

Demonstrates the Chilkat Email.GetNthTextPartOfType method, which returns the text content of the Nth non-multipart MIME part matching a Content-Type pattern. The arguments are a zero-based index among the matching parts, the content-type pattern, an inlineOnly flag, and an excludeAttachments flag. This example retrieves the first text/html part.

Background: A MIME message is a tree of parts, and sometimes you want a specific one by its type rather than by walking alternatives or bodies. The content-type pattern can be exact (text/html) or a wildcard (text/*), and the two boolean flags narrow the search — inlineOnly restricts to inline (displayed) parts, and excludeAttachments skips parts marked as attachments — so you can target exactly the text you care about.

Chilkat DataFlex Downloads

Download Chilkat for DataFlex

DataFlex

Use ChilkatAx-win32.pkg

Procedure Test
    Handle hoEmail
    Boolean iSuccess
    String sHtmlPart

    //  Demonstrates the GetNthTextPartOfType method, which returns the text content of the Nth
    //  non-multipart MIME part matching a Content-Type pattern.  The first argument is the zero-based
    //  index among matching parts, the second is the Content-Type pattern, the third is inlineOnly, and the fourth is
    //  excludeAttachments.

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

    Send ComSetTextBody To hoEmail "This is the plain-text version." "text/plain"
    Get ComAddHtmlAlternativeBody Of hoEmail "<html><body>This is the HTML version.</body></html>" To iSuccess

    //  Get the first (index 0) part whose content type matches text/html.
    Get ComGetNthTextPartOfType Of hoEmail 0 "text/html" False False To sHtmlPart
    Showln "First text/html part:"
    Showln sHtmlPart


End_Procedure