Imports System.Runtime.InteropServices
Public Class SurfaceVisualisation

    Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
        Dim objApplication As SolidEdgeFramework.Application = Nothing
        Dim objType As Type = Nothing

        Try
            'This is just an example to demonstrate "How to start a command?"
            ' Create/get the application with specific settings
            objApplication = Marshal.GetActiveObject("SolidEdge.Application")

            If objApplication Is Nothing Then
                ' Get the type from the Solid Edge ProgID
                objType = Type.GetTypeFromProgID("SolidEdge.Application")
                ' Start Solid Edge
                objApplication = Activator.CreateInstance(objType)
                ' Make Solid Edge visible
                objApplication.Visible = True
            End If

            ' Start the Surface Visualization Command
            objApplication.StartCommand(SolidEdgeFramework.SolidEdgeCommandConstants.seSurfaceVisualCommand)

            ' To stop the command (invokes the "select" tool/command)
            objApplication.StartCommand(45000)
        Catch ex As Exception
            MsgBox(ex.ToString)
        End Try
    End Sub
End Class