public override IEnumerable <KeyValuePair <string, object> > GetAvailableFamilyFaces(string family)
{
foreach (var nsFace in NSFontManager.SharedFontManager.AvailableMembersOfFontFamily(family))
{
var name = NSString.FromHandle(nsFace.ValueAt(1));
var weight = ((NSNumber)NSValue.ValueFromPointer(nsFace.ValueAt(2)).NonretainedObjectValue).Int32Value;
var traits = (NSFontTraitMask)((NSNumber)NSValue.ValueFromPointer(nsFace.ValueAt(3)).NonretainedObjectValue).Int32Value;
yield return(new KeyValuePair <string, object>(name, FontData.FromFamily(family, traits, weight, 0)));
}
yield break;
}
