SQL Server

Load an Email from MIME in a BinData

Demonstrates the Chilkat Email.SetFromMimeBd method, which loads an email from the MIME stored in a BinData object. On success, it replaces the entire current email. This example serializes one email into a BinData with GetMimeBd, then reconstructs it in a second object.

Background: This is the binary counterpart to SetFromMimeText and SetFromMimeSb. When a message's raw MIME arrives as bytes — read from a file, a socket, or a database blob into a BinData — loading it directly avoids any lossy or awkward byte-to-text conversion, which matters because MIME can carry binary transfer encodings.

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

    --  Demonstrates the SetFromMimeBd method, which loads an email from MIME stored in a BinData
    --  object.  On success, it replaces the entire current email.

    --  Build a source email and serialize its MIME into a BinData.
    DECLARE @source int
    EXEC @hr = sp_OACreate 'Chilkat.Email', @source OUT
    IF @hr <> 0
    BEGIN
        PRINT 'Failed to create ActiveX component'
        RETURN
    END

    EXEC sp_OASetProperty @source, 'Subject', 'Source message'
    EXEC sp_OASetProperty @source, 'From', 'alice@example.com'
    EXEC sp_OASetProperty @source, 'Body', 'Hello from a BinData.'
    DECLARE @bdMime int
    EXEC @hr = sp_OACreate 'Chilkat.BinData', @bdMime OUT

    EXEC sp_OAMethod @source, 'GetMimeBd', @success OUT, @bdMime

    --  Load a new email object from the BinData MIME.
    DECLARE @email int
    EXEC @hr = sp_OACreate 'Chilkat.Email', @email OUT

    EXEC sp_OAMethod @email, 'SetFromMimeBd', @success OUT, @bdMime
    IF @success = 0
      BEGIN
        EXEC sp_OAGetProperty @email, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @source
        EXEC @hr = sp_OADestroy @bdMime
        EXEC @hr = sp_OADestroy @email
        RETURN
      END


    EXEC sp_OAGetProperty @email, 'Subject', @sTmp0 OUT
    PRINT 'Loaded subject: ' + @sTmp0

    EXEC @hr = sp_OADestroy @source
    EXEC @hr = sp_OADestroy @bdMime
    EXEC @hr = sp_OADestroy @email


END
GO