How to export flats patterns (.DXF extension) from a "MULTIBODY" part

Hello there,

I have had some problems to build a macro that generates flats patterns from a multibody part...  In the API Help says that "ExportFlatPatternView" method belongs to IpartDoc Interface. So, if I have a multibody sheetmetal part and obtain an array of bodies from the cut list for example(or I use selectionmanager method), How can I storage each body in the Sldworks.Modeldoc2 variable type? what method or object have I to use?

All of the examples what i found are like this: 

Sub Example ()

Dim swApp as SLdworks.Sldworks = Application.SLdworks

Dim part as Sldworks.ModelDoc2 = swApp.ActiveDoc

..... 'Some lines more

boolstatus = part.ExportFlatPatternView("C:\Users\xxxxx\xxxx\xxx.DXF", swExportFlatPatternOption_None)

.... ' lines

End Sub

I need that "part" (Sldworks.Modeldoc2) be any body in my model or each body (in case that I use a "For.. Next" statement to sweep the array of bodies.)

Do you have any idea how i can solve this?

Thanks in advance

Regards

SolidworksApi macros