undPicture() As StdPicture
   If Not m_cTVB Is Nothing Then
      Set BackgroundPicture = m_cTVB.Tile.Picture
   End If
End Property
Private Sub pSetBackPic(ByRef sPic As StdPicture)
   If sPic Is Nothing Then
      If Not m_cTVB Is Nothing Then
         Set m_cTVB = Nothing
         InvalidateRect tvwOpt.hwnd, 0, 0
      End If
   Else
      If m_cTVB Is Nothing Then
         Set m_cTVB = New cTVBackground
      End If
      m_cTVB.Tile.Picture = sPic
      If UserControl.Ambient.UserMode Then
         Sen