Private Sub Form_Load()
    Dim objApp As SolidEdgeFramework.Application
    Dim objDoc As SolidEdgePart.PartDocument
    Dim objBody As SolidEdgeGeometry.Body
    Dim objEdges As Object
    Dim objBSplnEdge As SolidEdgeGeometry.Edge
    Dim objBSpln As SolidEdgeGeometry.BSplineCurve
    Const TESTFILE = "T:\vbtests\testcases\Curve3d.par"
    Dim bPlanar As Boolean
    ' 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
    ' Open the TestFile
    Set objDoc = objApp.Documents.Open(TESTFILE)
    ' Get the Model object
    Set objBody = objDoc.Models(1).Body
    ' Get Edges Collection object
    Set objEdges = objBody.Edges(EdgeType:=igQuerySpline)
    ' Get a Spline Edge
    Set objBSplnEdge = objEdges(1)
    ' Get the BSpline Curve
    Set objBSpln = objBSplnEdge.Geometry
    ' Get the Planar property
    bPlanar = objBSpln.IsPlanar
    ' USER DISPLAY
    ' Release objects
    Set objApp = Nothing
    Set objDoc = Nothing
    Set objBody = Nothing
    Set objBSplnEdge = Nothing
    Set objEdges = Nothing
    Set objBSpln = Nothing
End Sub