DataFlex

Get the Content-Type of an Attachment

Demonstrates the Chilkat Email.GetAttachmentContentType method, which returns the Content-Type header field for the Nth attachment. Attachment indexing begins at 0. This example adds an attachment and reads its content type.

Background: The Content-Type (MIME type) of an attachment — such as text/plain, application/pdf, or image/png — tells a mail client how to handle the part: whether to display it inline, offer it as a download, or pick an icon for it. Reading it lets your program filter or route attachments by type, for example extracting only the PDFs from a batch of messages.

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Use ChilkatAx-win32.pkg

Procedure Test
    Handle hoEmail
    Boolean iSuccess
    String sCt

    //  Demonstrates the GetAttachmentContentType method, which returns the Content-Type header
    //  field for the Nth attachment.  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 "Attachment content type"

    Get ComAddStringAttachment Of hoEmail "notes.txt" "Some notes." To iSuccess

    //  Get the Content-Type of the first attachment (index 0).
    Get ComGetAttachmentContentType Of hoEmail 0 To sCt
    Showln "Attachment 0 Content-Type: " sCt


End_Procedure