Resharper 8. Macros extension. How to get type of parameter

Hello.
I have been trying to write custom macro that should render some content according to properties of type.
I have use next code:

*var method = TextControlToPsi.GetContainingTypeOrTypeMember(context.SessionContext.Solution, control);     *
IParameter item = ((IMethod)method).Parameters.Where(p => p.ShortName == myArgument.GetValue()).FirstOrDefault();

I want to get type of parameter and properties of this type but all are wraped by JetBrains objects and i don't know how to clearly get needed object.

Could you please help me?

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Original message URL: http://devnet.jetbrains.net/message/5503867#5503867