SQL Server

Serialize MIME to BinData

Demonstrates the Chilkat Mime.GetMimeBd method, which serializes the complete MIME entity and appends its bytes to a BinData. The only argument is the BinData; existing bytes are preserved.

Note: The file paths are relative to the application's current working directory. Absolute paths may also be used. Supply the paths appropriate to your own environment.

Background: This is the byte-exact serializer — the right choice when the MIME carries binary content such as an image or an 8-bit-encoded part, where routing the output through a text string could corrupt it. The result is a faithful byte stream you can write to a file, transmit, or hash. It pairs with LoadMimeBd for lossless round-tripping of binary MIME.

Chilkat SQL Server Downloads

Download Chilkat for SQL Server

SQL Server

--
CREATE PROCEDURE ChilkatSample
AS
BEGIN
    DECLARE @hr int
    DECLARE @iTmp0 int
    DECLARE @sTmp0 nvarchar(4000)
    DECLARE @success int
    SELECT @success = 0

    --  Demonstrates the Mime.GetMimeBd method, which serializes the complete MIME entity and appends
    --  its bytes to a BinData.  The only argument is the BinData.  Use this when arbitrary binary body
    --  bytes must not pass through a text string.

    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, 'SetBodyFromFile', @success OUT, 'qa_data/photo.jpg'
    IF @success = 0
      BEGIN
        EXEC sp_OAGetProperty @mime, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @mime
        RETURN
      END

    --  Append the serialized MIME bytes to a BinData.  Existing bytes are preserved.
    DECLARE @bd int
    EXEC @hr = sp_OACreate 'Chilkat.BinData', @bd OUT

    EXEC sp_OAMethod @mime, 'GetMimeBd', @success OUT, @bd
    IF @success = 0
      BEGIN
        EXEC sp_OAGetProperty @mime, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @mime
        EXEC @hr = sp_OADestroy @bd
        RETURN
      END


    EXEC sp_OAGetProperty @bd, 'NumBytes', @iTmp0 OUT

    PRINT 'Serialized ' + @iTmp0 + ' bytes.'

    EXEC @hr = sp_OADestroy @mime
    EXEC @hr = sp_OADestroy @bd


END
GO