Private Sub Form_Load()
    Dim objApp As solidedgeframework.Application
    Dim objDoc As SolidEdgepart.PartDocument
    Dim objBody As solidedgegeometry.Body
    Dim objFace As solidedgegeometry.Face
    Dim dblParam(3) As Double
    Dim dblNormal() As Double
    Const TESTFILE = "T:\vbtests\testcases\HalfCyl.par"
    ' Report errors
    Const PI = 3.14159265358979
    ' Create/get the application with specific settings
    On Error Resume Next
    Set objApp = GetObject(, "SolidEdge.Application")
    If Err Then
        Err.Clear
        Set objApp = CreateObject("SolidEdge.Application")
        Set objDoc = objApp.Documents.Add("SolidEdge.PartDocument")
        objApp.Visible = True
    Else
        Set objDoc = objApp.ActiveDocument
    End If
    Call objDoc.Close
    ' opening the testfile
    Set objDoc = objApp.Documents.Open(TESTFILE)
    ' getting the body object of the model
    Set objBody = objDoc.Models(1).Body
    ' getting a particular face from the collection of faces on the body
    Set objFace = objBody.Faces(FaceType:=igQueryAll).Item(2)
    ' getting the normal at a point (u=0.5, v=0.5) on a Face
    dblParam(0) = 3 * PI / 2
    dblParam(1) = 0.1
    dblParam(2) = PI / 2
    dblParam(3) = 0.05
    Call objFace.GetNormal(NumParams:=2, Params:=dblParam, Normals:=dblNormal)
    ' USER DISPLAY
    ' Release objects
    Set objApp = Nothing
    Set objDoc = Nothing
    Set objBody = Nothing
    Set objFace = Nothing
End Sub