How do I get the domain from an OGRSpatialReference?

I would like to know what the projected bounds are for a spatial reference using OGRSpatialReference. Is there some way to use the GetProjParm method to get this information?

An example of what I’m looking for can be seen as the “projected bounds” and “wgs84 bounds” on the following spatialreference.org page:

http://www.spatialreference.org/ref/epsg/3786/