cst microwave studio vba objects

Using some examples i wrote a small code in VBA of CST microwave studio in order to calculate the SAR. I wrote here a part of the code. The program is running ok in a cst model i have made. I need to know what calculations do the object named "SAR" in order to give me the final result. Is there any way to see it or it is encrypted somewhere inside a dll file? Please help! Thanks

With SAR
.Reset
.PowerlossMonitor pwname + sExcit
Select Case CInt(Gr)
Case 0
.AverageWeight "1.0"
Case 1
.AverageWeight "10.0"
End Select
.EntireVolume True
.Create
End With