Private Sub Form_Load()
    Dim objApp As SolidEdgeFrameWork.Application
    Dim objDoc As SolidEdgeDraft.DraftDocument
    Dim objSheet As SolidEdgeDraft.Sheet
    Dim objCenterLines As SolidEdgeFrameworkSupport.CenterLines
    Dim objCenterLine As SolidEdgeFrameworkSupport.CenterLine
    Dim strKey As String
    ' 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.DraftDocument")
        objApp.Visible = True
    Else
        Set objDoc = objApp.ActiveDocument
    End If
    'getting the Active Sheet object
    Set objSheet = objDoc.ActiveSheet
    ' Get the CenterLines object on the active sheet
    Set objCenterLines = objSheet.CenterLines

    ' Draw a CenterLine on the active sheet
    Set objCenterLine = objCenterLines.Add(x1:=0.25, y1:=0.15, z1:=0, _
                                           x2:=0.25, y2:=0.35, z2:=0)
    ' Get the Key property
    strKey = objCenterLine.Key

    ' USER DISPLAY
    ' Release objects
    Set objApp = Nothing
    Set objDoc = Nothing
    Set objSheet = Nothing
    Set objCenterLines = Nothing
    Set objCenterLine = Nothing
End Sub