how to find visible parts in section view

Hi,

I was wondering if there is a way to find out the only about  parts visible in section view. ? ( The assembly may have a lot more components. )The idea behind is : for each part that is shown in section view, i will be checking height and if height is different from some specified value, i will go ahead to create a detailed view of each of those part

I am not sure what property I should be looking for the to find the hidden parts when section view is drawn ?SelectionManager currently shows all the parts in the assembly.

Any example/help will be appeciated.

SolidworksApi macros