<area shape="rect" id="node4" href="$classExiv2_1_1XmpKey.html" title="Concrete keys for XMP metadata." alt="" coords="5,96,157,123"> <area shape="rect" id="node6" href="$classExiv2_1_1Key.html" title="Abstract base class defining the Key of a metadatum. Keys are used to identify and..." alt="" coords="21,5,141,32"> <area shape="rect" id="node8" title="STL class." alt="" coords="181,96,381,123"> <area shape="rect" id="node14" href="$classExiv2_1_1Value.html" title="Common interface for all types of values used with metadata." alt="" coords="405,96,547,123">