I am missing something very obvious here because I am new.

All I am trying to do is get the FaceIDs from a Solidworks model using a Face Traversal as shown below.

1.  I am not certain why   faceid = swFace.GetFaceId() does not seem to work.

'
' ==========================================================

Option Explicit
Dim swApp As SldWorks.SldWorks
Dim swModel As SldWorks.ModelDoc2
Dim swPart As SldWorks.PartDoc
Dim retval As Variant
Dim i As Integer
Dim swFace As SldWorks.face2
Dim matProps(8) As Double
Dim faceid As Integer

Sub main()
    Set swApp = Application.SldWorks
    If Not swApp Is Nothing Then
            Set swModel = swApp.ActiveDoc
        If Not swModel Is Nothing Then
            'Notice the Explicit Type Casting
            Set swPart = swModel
            If Not swPart Is Nothing Then
                retval = swPart.GetBodies2(SwConst.swSolidBody, True)
                For i = 0 To UBound(retval)
                    Set swFace = retval(i).GetFirstFace
                    matProps(0) = 1
                    matProps(1) = 0
                    matProps(2) = 0
                    matProps(3) = 1
                    matProps(4) = 1
                    matProps(5) = 0.3
                    matProps(6) = 0.3
                    matProps(7) = 0
                    matProps(8) = 0
                    Do While Not swFace Is Nothing
                        swFace.MaterialPropertyValues = ((matProps))
                        faceid = swFace.GetFaceId()
                       
                        Debug.Print faceid
                       
                       
                        swModel.ActiveView.GraphicsRedraw Nothing
                        Set swFace = swFace.GetNextFace
                    Loop
                Next i
            End If
            Set swPart = Nothing
        End If
        Set swModel = Nothing
    End If
    Set swApp = Nothing
End Sub