(SQL Server) Example: Crypt2.CrcBd method

Demonstrates how to call the CrcBd method.

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows

-- Important: See this note about string length limitations for strings returned by sp_OAMethod calls.
--
CREATE PROCEDURE ChilkatSample
AS
BEGIN
    DECLARE @hr int
    DECLARE @crypt int
    EXEC @hr = sp_OACreate 'Chilkat.Crypt2', @crypt OUT
    IF @hr <> 0
    BEGIN
        PRINT 'Failed to create ActiveX component'
        RETURN
    END

    DECLARE @bd int
    EXEC @hr = sp_OACreate 'Chilkat.BinData', @bd OUT

    DECLARE @success int
    EXEC sp_OAMethod @bd, 'AppendString', @success OUT, '123456789', 'us-ascii'

    DECLARE @crc32 int
    EXEC sp_OAMethod @crypt, 'CrcBd', @crc32 OUT, 'crc-32', @bd
    -- The decimal value is 3421780262 (converted to hex is 0xCBF43926)

    PRINT @crc32

    DECLARE @crc8 int
    EXEC sp_OAMethod @crypt, 'CrcBd', @crc8 OUT, 'crc8', @bd

    PRINT @crc8

    EXEC @hr = sp_OADestroy @crypt
    EXEC @hr = sp_OADestroy @bd


END
GO