Rust

Get a Structure Property Value from XMP

See more XMP Examples

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). Rust

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

let xmp = chilkat::Xmp::new();

// 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
if xmp.load_app_file("sample1.jpg").is_err() {
    println!("{}", xmp.last_error_text());
    return;
}

println!("Num embedded XMP docs: {}", xmp.num_embedded());

// Assuming there is at least one, get the 1st.
// (There is typically never more than one, but theoretically it's possible.)
if let Ok(xml) = xmp.get_embedded(0) {

    let prop_val = xmp.get_struct_value(&xml, "Iptc4xmpCore:CreatorContactInfo", "Iptc4xmpCore:CiTelWork").unwrap_or_default();
    if !xmp.last_method_success() {
        println!("Not found.");
    } else {
        println!("{}", prop_val);
    }

} else {
    println!("{}", xmp.last_error_text());
}