How to get stroke color and size of rectangle?

Hi All,

I am developing an extension for CS5 and above (including CC version). I want to get the stroke color and size of a rectangle. I was able to do so in CS5. But, I noticed that in the CC version, there are two ways in which the user can apply a stroke. One is by applying effect in Layer Style, and the other is through the Properties panel. I am able to get the stroke values in my script if it is applied through Layer Style but I fail to do so in the other scenario.

How are these two strokes different and how can I get the stroke color and size if it is applied through Properties panel using script?

Thanks!