Private Sub Form_Load()
    Dim objApp As SolidEdgeFramework.Application
    Dim objDoc As SolidEdgeDraft.DraftDocument
    Dim objSheet As SolidEdgeDraft.Sheet
    Dim objBounds As SolidEdgeFrameworkSupport.Boundaries2d
    Dim objBound As SolidEdgeFrameworkSupport.Boundary2d
    Dim dblPoint(1 To 8) As Double
    ' 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
    'Get the Active Sheet object
    Set objSheet = objDoc.ActiveSheet
    'Get the Boundaries2d object on the active sheet
    Set objBounds = objSheet.Boundaries2d
    ' Create a Points array
    dblPoint(1) = 0.1
    dblPoint(2) = 0.1
    dblPoint(3) = 0.1
    dblPoint(4) = 0.2
    dblPoint(5) = 0.2
    dblPoint(6) = 0.2
    dblPoint(7) = 0.2
    dblPoint(8) = 0.1
    ' Create a Boundary2d object
    Set objBound = objBounds.AddByPoints(PointCount:=4, Points:=dblPoint)
    ' Mirror the bounding entities about Y-axis"
    Call objBound.Mirror(x1:=0.25, y1:=0#, x2:=0.25, y2:=0.5)
    ' USER DISPLAY
    ' Release objects
    Set objApp = Nothing
    Set objDoc = Nothing
    Set objSheet = Nothing
    Set objBounds = Nothing
    Set objBound = Nothing
End Sub