Hi, I've been playing with wx and python some time ago and used this to get transparency, maybe useful for you ?
#!/usr/bin/python import wx transp = 128 radie = 80 cross = True class SketchFrame(wx.Frame): def __init__(self, parent): wx.Frame.__init__(self, None, -1, "Bulls eye", size=(400, 400)) #panel = wx.Panel(self, wx.ID_ANY) #btn = wx.Button(panel, label="OK") self.SetTransparent(transp) self.Buffer = None #self.SetFocus()