Exclude Resources Matching a Pattern

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Demonstrates Mht.ExcludeImagesMatching, which adds an exclusion pattern used while gathering embeddable resources, so matching resources are omitted from the archive.

-- 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

    --  Add an exclusion pattern for embeddable resources.  Each candidate resource is tested against its
    --  fully resolved reference (an absolute URL for web content), so resources whose reference matches
    --  the pattern are omitted from the archive.  Here, resources ending in ".gif" are excluded.
    EXEC sp_OAMethod @mht, 'ExcludeImagesMatching', NULL, '*.gif'

    --  Create the MHT web archive without the excluded resources.
    DECLARE @mhtText nvarchar(4000)
    EXEC sp_OAMethod @mht, 'GetMHT', @mhtText OUT, 'https://example-code.com/crumb/index.html'
    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 @mhtText

    EXEC @hr = sp_OADestroy @mht


END
GO