IGES file property calculation

Hello All;

I am new in using OpenCASCADE! I managed to import IGES file.
I want to know the informations in my IGES file,
-Kind of geometric elements (curves, surfaces etc)
-characteristic of each surfaces (control points, knots, degree and so on)
-Properties (size, area, volume, mass, etc)

Any suggested material to read and sample program helps!

Thanks for ur help

Game
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