Attributes to expose enum to COM?

[John Smith]

What's the magical incantation to be able to expose an enum to COM?

namespace NThingy
{
// I want to be able to access this like an old school midl enum
public enum FileStatusCodes
{
HOLD = 0,
PENDING = 1,
COMPLETED = 2
}
// Interface...
[Guid("XXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXX")]
public interface IThingy
{
}
// Events...
[Guid("XXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXX")]
InterfaceType(ComInterfaceType.InterfaceIsIDispatc h)]
public interface EThingy
{
}
// the object...
[Guid("XXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXX")]
ClassInterface(ClassInterfaceType.None),
ComSourceInterfaces(typeof(EThingy))]
public class CThingy:IThingy
{
}
}