After a lot of web searching here it is :)
The code is something like that!
empty = wx.EmptyBitmap(parent.imageWidth,12+parent.imageHeight)
dc = wx.MemoryDC()
dc.SelectObject(empty)
dc.SetTextForeground(parent.colorFont)
dc.SetPen(wx.Pen('WHITE', 1))
dc.DrawLine(0, 3, parent.imageWidth, 3)
dc.DrawLine(0, 6, parent.imageWidth, 6)
dc.DrawLine(0, 9, parent.imageWidth, 9)
dc.DrawBitmap(imageSmall[len(imageSmall)-1], 0, 12, True)
dc.SelectObject(wx.NullBitmap)
wx.StaticBitmap.__init__(self, parent, id, bitmap=empty, pos=(position[0], position[1]), size=(parent.imageWidth, parent.imageHeight))