public WicMetadataPolicies(WicMetadataQueryReader reader)
{
if (reader == null)
{
throw new ArgumentNullException(nameof(reader));
}
Reader = reader;
}
IEnumerator<WicMetadataKeyValue> IEnumerable<WicMetadataKeyValue>.GetEnumerator()
{
foreach (var name in Strings)
{
if (name == null)
continue;
if (!TryGetMetadataByName(name, out var value, out var type))
continue;
if (value is IWICMetadataQueryReader reader)
{
var childReader = new WicMetadataQueryReader(reader);
yield return new WicMetadataKeyValue(new WicMetadataKey(childReader.ContainerFormat, name), childReader, type);
}
else
{
yield return new WicMetadataKeyValue(new WicMetadataKey(ContainerFormat, name), value, type);
}
}
}
