Retrieving weldment parameters

I am having trouble figuring out how to retrieve the parameter information for a weldment in a part. I would like to obtain the Type and Size. My initial attempt was to use

    dim swStructuralMemberFeatData as SldWorks.StructuralMemberFeatData

    set swStrucuturalMemberFeatData = swFeat.GetDefinition

I had thought that I would be able to see the parameter values from this. I guess my understanding of the help file was wrong.

SolidworksApi/macros