(Lianja) 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.)

Chilkat Lianja Extension Download Chilkat Lianja Extension

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

loXmp = createobject("CkXmp")

// Load a JPG or TIF image file.
llSuccess = loXmp.LoadAppFile("qa_data/xmp/AJ_123642_1511.tif")
if (llSuccess <> .T.) then
    ? loXmp.LastErrorText
    release loXmp
    return
endif

? "Num embedded XMP docs: " + str(loXmp.NumEmbedded)

// This example assumes that XMP metadata is already present in the image file.
if (loXmp.NumEmbedded = 0) then
    ? "No XMP metadata already exists.."
    release loXmp
    return
endif

// Get the XMP metadata.

loXml = loXmp.GetEmbedded(0)

// Show the XML:
? loXml.GetXml()

// Update (overwrite) a string property.
loXmp.AddSimpleStr(loXml,"NumberofTimes","123")

llSuccess = loXmp.SaveAppFile("qa_output/updated.tif")
if (llSuccess <> .T.) then
    ? loXmp.LastErrorText
    release loXmp
    return
endif

? "Success."


release loXmp