How to retrieve unary operator for member?

Hi to everyone!

How to retrieve the value of the "UNARY_OPERATOR" property for a given dimension member?
MDSCHEMA_PROPERTIES schema contains information about this property but there is no such item in Properties collection of ADOMD.Member object.

I use the final version of SSAS2005 and MSOLAP.3 provider. I connect to server via ADOMD (not ADOMD.NET).
I have just discovered the way, but I think it's rather strange. You can execute a query with DIMENSION PROPERTIES statement like this:

SELECT { [Account].[Accounts].AllMembers } DIMENSION PROPERTIES UNARY_OPERATOR
ON ROWS, { [Category].[Category].Levels(0).AllMembers }
ON COLUMNS FROM [Finance] WHERE ([Measures].[Amount]
)

and needed property value is included in query results.

I'm still looking for another solution...