SQL Server

Convert HTML Text to an EML Message

Demonstrates Mht.HtmlToEML, which creates an EML MIME message from an in-memory HTML string and returns the complete EML text.

Background. The EML output is a MIME email message containing the HTML page and its referenced resources, suitable for sending the page as an HTML email.

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

    --  Create an EML MIME message from an in-memory HTML string and return the complete EML text.
    DECLARE @htmlText nvarchar(4000)
    SELECT @htmlText = '<html><head><title>Example</title></head><body><h1>Hello</h1><p>An example HTML page.</p></body></html>'
    DECLARE @emlText nvarchar(4000)
    EXEC sp_OAMethod @mht, 'HtmlToEML', @emlText OUT, @htmlText
    EXEC sp_OAGetProperty @mht, 'LastMethodSuccess', @iTmp0 OUT
    IF @iTmp0 = 0
      BEGIN
        EXEC sp_OAGetProperty @mht, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @mht
        RETURN
      END

    PRINT @emlText

    EXEC @hr = sp_OADestroy @mht


END
GO