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DataFlex Examples

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(DataFlex) Get the Value of a MIME Header Field

Demonstrates how to get the value of a MIME header field. If the header field is not in the top-level MIME header, we must first navigate to the correct MIME part.

Chilkat ActiveX Downloads

ActiveX for 32-bit and 64-bit Windows

Use ChilkatAx-9.5.0-win32.pkg

Procedure Test
    Handle hoMime
    Boolean iSuccess
    Variant vMpRelated
    Handle hoMpRelated
    Variant vPJpg
    Handle hoPJpg
    String sTemp1

    //  This example assumes Chilkat Mime to have been previously unlocked.
    //  See Unlock Mime for sample code.

    Get Create (RefClass(cComChilkatMime)) To hoMime
    If (Not(IsComObjectCreated(hoMime))) Begin
        Send CreateComObject of hoMime
    End

    //  The contents of this MIME file are shown below,
    //  and is also available at https://www.chilkatsoft.com/sampleMime.txt
    Get ComLoadMimeFile Of hoMime "qa_data/mime/sampleMime.txt" To iSuccess
    If (iSuccess <> True) Begin
        Get ComLastErrorText Of hoMime To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    //  The MIME used in this example has the following nested structure
    // 
    //  multipart/alternative
    //      text/plain
    //      multipart/related
    //          text/html
    //          image/jpeg
    // 

    //  Getting the content of a top-level MIME header is easy.
    //  MIME header fields are case insensitive.
    Get ComGetHeaderField Of hoMime "subject" To sTemp1
    Showln "Subject = " sTemp1
    Get ComGetHeaderField Of hoMime "mime-version" To sTemp1
    Showln "MIME-Version = " sTemp1

    //  To get a MIME header in a sub-part, first navigate to it..
    Get ComGetPart Of hoMime 1 To vMpRelated
    If (IsComObject(vMpRelated)) Begin
        Get Create (RefClass(cComChilkatMime)) To hoMpRelated
        Set pvComObject Of hoMpRelated To vMpRelated
    End
    Get ComGetPart Of hoMpRelated 1 To vPJpg
    If (IsComObject(vPJpg)) Begin
        Get Create (RefClass(cComChilkatMime)) To hoPJpg
        Set pvComObject Of hoPJpg To vPJpg
    End

    Get ComGetHeaderField Of hoPJpg "content-id" To sTemp1
    Showln "JPG Content-ID = " sTemp1
    Get ComGetHeaderField Of hoPJpg "content-type" To sTemp1
    Showln "JPG Content-Type = " sTemp1

    Send Destroy of hoPJpg
    Send Destroy of hoMpRelated

    //  --------------------------------------------------------------
    //  --------------------------------------------------------------
    //  The MIME sample file loaded at the beginning of this example
    //  contains the following MIME:

    //  Subject: Test email.
    //  Content-Type: multipart/alternative;
    //  	boundary="------------DB171738719FB06D67DEBAA0"
    //  MIME-Version: 1.0
    // 
    //  --------------DB171738719FB06D67DEBAA0
    //  Content-Type: text/plain; charset="utf-8"; format=flowed
    //  Content-Transfer-Encoding: 7bit
    // 
    //  This is a test.
    // 
    //  --------------DB171738719FB06D67DEBAA0
    //  Content-Type: multipart/related;
    //  	boundary="------------A940F1230E6F0105F03DB2CB"
    // 
    //  --------------A940F1230E6F0105F03DB2CB
    //  Content-Type: text/html; charset="utf-8"
    //  Content-Transfer-Encoding: 8bit
    // 
    //  <html><head>
    //  <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
    //    </head>
    //    <body bgcolor="#FFFFFF" text="#000000">
    //      <p>This is a test.&nbsp; <img src="cid:part1.E16AE3B4.1505C436@chilkatsoft.com" height="20" width="20"></p>
    //    </body>
    //  </html>
    // 
    //  --------------A940F1230E6F0105F03DB2CB
    //  Content-Type: image/jpeg; name="starfish20.jpg"
    //  Content-Transfer-Encoding: base64
    //  Content-ID: <part1.E16AE3B4.1505C436@chilkatsoft.com>
    //  Content-Disposition: inline; filename="starfish20.jpg"
    // 
    //  /9j/4AAQSkZJRgABAQEASABIAAD//gAmRmlsZSB3cml0dGVuIGJ5IEFkb2JlIFBob3Rvc2hvcD8g
    //  NC4w/9sAQwAQCwwODAoQDg0OEhEQExgoGhgWFhgxIyUdKDozPTw5Mzg3QEhcTkBEV0U3OFBtUVdf
    //  YmdoZz5NcXlwZHhcZWdj/9sAQwEREhIYFRgvGhovY0I4QmNjY2NjY2NjY2NjY2NjY2NjY2NjY2Nj
    //  Y2NjY2NjY2NjY2NjY2NjY2NjY2NjY2NjY2Nj/8IAEQgAFAAUAwERAAIRAQMRAf/EABcAAAMBAAAA
    //  AAAAAAAAAAAAAAIDBAX/xAAYAQADAQEAAAAAAAAAAAAAAAABAgMEAP/aAAwDAQACEAMQAAAB2kZY
    //  NNEijWKddfTmLgALWH//xAAbEAACAgMBAAAAAAAAAAAAAAABAgMRAAQSE//aAAgBAQABBQL0XqN+
    //  pM2aqJGMiqFFCyg7z//EABwRAAICAgMAAAAAAAAAAAAAAAERAAIQIQMSUf/aAAgBAwEBPwHqU5aq
    //  Axx+y1tMQl4elj//xAAcEQEAAQUBAQAAAAAAAAAAAAABEQACEBIhA1H/2gAIAQIBAT8B3Bhqy7Zc
    //  enyiwmGgDhiOzj//xAAdEAABAwUBAAAAAAAAAAAAAAABAAIREBIhIkFR/9oACAEBAAY/ArZyn+Cg
    //  xtxWuJaoCnqDuin/xAAcEAABBAMBAAAAAAAAAAAAAAABABEhYRAxQVH/2gAIAQEAAT8hkEwPUUR9
    //  DYfE4nxtRpIkBTsayuALIiuY/9oADAMBAAIAAwAAABDWPTsf/8QAGhEAAwADAQAAAAAAAAAAAAAA
    //  AAEREDFBIf/aAAgBAwEBPxC0DVPcWm+Ce4OesrkE6bjH/8QAGBEBAQEBAQAAAAAAAAAAAAAAAREA
    //  QRD/2gAIAQIBAT8QahMiOc8YgSrnTY3ELclHXn//xAAcEAEBAAIDAQEAAAAAAAAAAAABEQAhMUFx
    //  EFH/2gAIAQEAAT8Qn3igmSZSj+c4N4zapMy9IjFV98wncN2iuLFsCEbDGxQkI6RO/n//2Q==
    // 
    //  --------------A940F1230E6F0105F03DB2CB--
    // 
    //  --------------DB171738719FB06D67DEBAA0--
    // 


End_Procedure

 

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