SQL Server

Update a String Property in XMP

See more XMP Examples

Demonstrates how to open a JPG or TIF image file, access the XMP metadata, and update the value of a string property. (If the string property does not already exist, it is created.) SQL Server

-- 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
    -- Important: Do not use nvarchar(max).  See the warning about using nvarchar(max).
    DECLARE @sTmp0 nvarchar(4000)
    DECLARE @success int
    SELECT @success = 0

    -- This example assumes the Chilkat API to have been previously unlocked.
    -- See Global Unlock Sample for sample code.

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

    -- Load a JPG or TIF image file.
    EXEC sp_OAMethod @xmp, 'LoadAppFile', @success OUT, 'qa_data/xmp/AJ_123642_1511.tif'
    IF @success <> 1
      BEGIN
        EXEC sp_OAGetProperty @xmp, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @xmp
        RETURN
      END


    EXEC sp_OAGetProperty @xmp, 'NumEmbedded', @iTmp0 OUT
    PRINT 'Num embedded XMP docs: ' + @iTmp0

    -- This example assumes that XMP metadata is already present in the image file.
    EXEC sp_OAGetProperty @xmp, 'NumEmbedded', @iTmp0 OUT
    IF @iTmp0 = 0
      BEGIN

        PRINT 'No XMP metadata already exists..'
        EXEC @hr = sp_OADestroy @xmp
        RETURN
      END

    -- Get the XMP metadata.
    DECLARE @xml int

    EXEC sp_OAMethod @xmp, 'GetEmbedded', @xml OUT, 0

    -- Show the XML:
    EXEC sp_OAMethod @xml, 'GetXml', @sTmp0 OUT
    PRINT @sTmp0

    -- Update (overwrite) a string property.
    EXEC sp_OAMethod @xmp, 'AddSimpleStr', @success OUT, @xml, 'NumberofTimes', '123'

    EXEC sp_OAMethod @xmp, 'SaveAppFile', @success OUT, 'qa_output/updated.tif'
    IF @success <> 1
      BEGIN
        EXEC sp_OAGetProperty @xmp, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @xmp
        RETURN
      END


    PRINT 'Success.'

    EXEC @hr = sp_OADestroy @xmp


END
GO