Classic ASP

Update a String Property in XMP

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.)

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Classic ASP

<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
</head>
<body>
<%
success = 0

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

set xmp = Server.CreateObject("Chilkat.Xmp")

' Load a JPG or TIF image file.
success = xmp.LoadAppFile("qa_data/xmp/AJ_123642_1511.tif")
If (success <> 1) Then
    Response.Write "<pre>" & Server.HTMLEncode( xmp.LastErrorText) & "</pre>"
    Response.End
End If

Response.Write "<pre>" & Server.HTMLEncode( "Num embedded XMP docs: " & xmp.NumEmbedded) & "</pre>"

' This example assumes that XMP metadata is already present in the image file.
If (xmp.NumEmbedded = 0) Then
    Response.Write "<pre>" & Server.HTMLEncode( "No XMP metadata already exists..") & "</pre>"
    Response.End
End If

' Get the XMP metadata.

' xml is a Chilkat.Xml
Set xml = xmp.GetEmbedded(0)

' Show the XML:
Response.Write "<pre>" & Server.HTMLEncode( xml.GetXml()) & "</pre>"

' Update (overwrite) a string property.
success = xmp.AddSimpleStr(xml,"NumberofTimes","123")

success = xmp.SaveAppFile("qa_output/updated.tif")
If (success <> 1) Then
    Response.Write "<pre>" & Server.HTMLEncode( xmp.LastErrorText) & "</pre>"
    Response.End
End If

Response.Write "<pre>" & Server.HTMLEncode( "Success.") & "</pre>"

%>
</body>
</html>