wxPython实现窗口用图片做背景

#!/usr/bin/env python # -*- encoding:utf-8 -*-  import wx   class MyPanel(wx.Panel):  def __init__(self, parent, id):   wx.Panel.__init__(self, parent, id)   try:    image_file = 'image.jpg'    to_bmp_image = wx.Image(image_file, wx.BITMAP_TYPE_ANY).ConvertToBitmap()    self.bitmap = wx.StaticBitmap(self, -1, to_bmp_image, (0, 0))    image_width = to_bmp_image.GetWidth()    image_height = to_bmp_image.GetHeight()    set_title = '%s %d x %d' % (image_file, to_bmp_image.GetWidth(), to_bmp_image.GetHeight())    parent.SetTitle(set_title)   except IOError:    print 'Image file %s not found' % image_file    raise SystemExit   #创建一个按钮   self.button = wx.Button(self.bitmap, -1, label='Test', pos=(10,10)) if __name__ == '__main__':  app = wx.PySimpleApp()  frame = wx.Frame(None, -1, 'Image', size=(300,300))  my_panel = MyPanel(frame, -1)  frame.Show()  app.MainLoop()