From what I've been able to tell, generally, the APIName of a property in an object's object.Properties list corresponds to the name used to access that property directly from the object. In other words, to get the value of the property from a given index of object.Properties, this should work: getattr(object, object.Properties[index].APIName).
As an example, for a named selection, the second item in the object.Properties list shows up as GeometrySelection when you execute object.Properties[1], and 'Location' is returned when you execute object.Properties[1].APIName. So, object.Location is equivalent to getattr(object, object.Properties[1].APIName). This can be useful since it allows the entirety of the properties for a given object to be obtained by the script without having to know ahead of time the means of getting a specific property.
However, there is at least one instance where this is not the case. For the "Optimization Region" of a "Structural Optimization" simulation, object.DesignRegionLocation returns the scoped geometry for the region. However, the item that corresponds to that property is the third item from the object.Properties list, and the APIName is empty. As far as I can tell, there is no means of identifying the DesignRegionLocation from the object.Properties list. Am I missing something?
