(Mono C#) Get a Structure Property Value from XMP

Demonstrates how to open a JPG or TIF image file, access the XMP metadata, and fetch the value of a structure property, such as the Iptc4xmpCore:CiTelWork (found within the Iptc4xmpCore:CreatorContactInfo structure).

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

Chilkat.Xmp xmp = new Chilkat.Xmp();

// Load a JPG or TIF image file.
// Sample JPG's with XMP metadata may be found at:
// http://www.chilkatsoft.com/testData/xmp/sample1.jpg
// http://www.chilkatsoft.com/testData/xmp/sample2.jpg
// http://www.chilkatsoft.com/testData/xmp/sample3.jpg
bool success = xmp.LoadAppFile("sample1.jpg");
if (success != true) {
    Debug.WriteLine(xmp.LastErrorText);
    return;
}

Debug.WriteLine("Num embedded XMP docs: " + Convert.ToString(xmp.NumEmbedded));

// Assuming there is at least one, get the 1st.
// (There is typically never more than one, but theoretically it's possible.)
Chilkat.Xml xml = xmp.GetEmbedded(0);
if (xmp.LastMethodSuccess == true) {

    string propVal = xmp.GetStructValue(xml,"Iptc4xmpCore:CreatorContactInfo","Iptc4xmpCore:CiTelWork");
    if (xmp.LastMethodSuccess != true) {
        Debug.WriteLine("Not found.");
    }
    else {
        Debug.WriteLine(propVal);
    }

}
else {
    Debug.WriteLine(xmp.LastErrorText);
}