MIME Content Part Descriptor Properties

See more MIME Examples

Demonstrates the properties that describe an individual MIME content part: Charset (the charset parameter of Content-Type), Encoding (the Content-Transfer-Encoding), Disposition (the Content-Disposition value), Filename (the filename parameter of Content-Disposition), and Name (the name parameter of Content-Type). Each is set and then read back, and the effect is visible in the serialized MIME header.

-- Important: See this note about string length limitations for strings returned by sp_OAMethod calls.
--
CREATE PROCEDURE ChilkatSample
AS
BEGIN
    DECLARE @hr int
    DECLARE @iTmp0 int
    DECLARE @sTmp0 nvarchar(4000)
    DECLARE @success int
    SELECT @success = 0

    DECLARE @mime int
    EXEC @hr = sp_OACreate 'Chilkat.Mime', @mime OUT
    IF @hr <> 0
    BEGIN
        PRINT 'Failed to create ActiveX component'
        RETURN
    END

    EXEC sp_OAMethod @mime, 'SetBodyFromPlainText', @success OUT, 'The quick brown fox.'
    IF @success = 0
      BEGIN
        EXEC sp_OAGetProperty @mime, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @mime
        RETURN
      END

    --  Charset is the charset parameter of the Content-Type header field (meaningful for text parts).
    EXEC sp_OASetProperty @mime, 'Charset', 'utf-8'

    --  Encoding is the Content-Transfer-Encoding for this part.
    EXEC sp_OASetProperty @mime, 'Encoding', 'quoted-printable'

    --  Disposition, Filename, and Name describe how a receiver should present the part.
    --  Filename is the filename parameter of Content-Disposition; Name is the name parameter of
    --  Content-Type.  Both are receiver-facing names, not local filesystem paths.
    EXEC sp_OASetProperty @mime, 'Disposition', 'attachment'
    EXEC sp_OASetProperty @mime, 'Filename', 'note.txt'
    EXEC sp_OASetProperty @mime, 'Name', 'note.txt'

    --  Read the descriptors back.

    EXEC sp_OAGetProperty @mime, 'Charset', @sTmp0 OUT
    PRINT 'Charset = ' + @sTmp0

    EXEC sp_OAGetProperty @mime, 'Encoding', @sTmp0 OUT
    PRINT 'Encoding = ' + @sTmp0

    EXEC sp_OAGetProperty @mime, 'Disposition', @sTmp0 OUT
    PRINT 'Disposition = ' + @sTmp0

    EXEC sp_OAGetProperty @mime, 'Filename', @sTmp0 OUT
    PRINT 'Filename = ' + @sTmp0

    EXEC sp_OAGetProperty @mime, 'Name', @sTmp0 OUT
    PRINT 'Name = ' + @sTmp0

    --  The descriptors appear in the serialized MIME header.
    DECLARE @mimeStr nvarchar(4000)
    EXEC sp_OAMethod @mime, 'GetMime', @mimeStr OUT
    EXEC sp_OAGetProperty @mime, 'LastMethodSuccess', @iTmp0 OUT
    IF @iTmp0 = 0
      BEGIN
        EXEC sp_OAGetProperty @mime, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @mime
        RETURN
      END

    PRINT @mimeStr

    EXEC @hr = sp_OADestroy @mime


END
GO