(Visual FoxPro) 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 ActiveX Downloads ActiveX for 32-bit and 64-bit Windows

LOCAL loXmp
LOCAL lnSuccess
LOCAL loXml

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

* For versions of Chilkat < 10.0.0, use CreateObject('Chilkat_9_5_0.Xmp')
loXmp = CreateObject('Chilkat.Xmp')

* Load a JPG or TIF image file.
lnSuccess = loXmp.LoadAppFile("qa_data/xmp/AJ_123642_1511.tif")
IF (lnSuccess <> 1) THEN
    ? loXmp.LastErrorText
    RELEASE loXmp
    CANCEL
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
    CANCEL
ENDIF

* Get the XMP metadata.

loXml = loXmp.GetEmbedded(0)

* Show the XML:
? loXml.GetXml()

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

lnSuccess = loXmp.SaveAppFile("qa_output/updated.tif")
IF (lnSuccess <> 1) THEN
    ? loXmp.LastErrorText
    RELEASE loXmp
    CANCEL
ENDIF

? "Success."

RELEASE loXmp