python中wx将图标显示在右下脚的代码

import wx
import images
class DemoTaskBarIcon(wx.TaskBarIcon):
    TBMENU_RESTORE = wx.NewId()
    TBMENU_CLOSE   = wx.NewId()
    TBMENU_CHANGE  = wx.NewId()
    TBMENU_REMOVE  = wx.NewId()
   
    def __init__(self, frame):
        wx.TaskBarIcon.__init__(self)
        self.frame = frame

        # Set the image
        icon = self.MakeIcon(images.getWXPdemoImage())
        self.SetIcon(icon, "wxPython Demo")
        self.imgidx = 1
      
        # bind some events
        self.Bind(wx.EVT_TASKBAR_LEFT_DCLICK, self.OnTaskBarActivate)
        self.Bind(wx.EVT_MENU, self.OnTaskBarActivate, id=self.TBMENU_RESTORE)
        self.Bind(wx.EVT_MENU, self.OnTaskBarClose, id=self.TBMENU_CLOSE)
        self.Bind(wx.EVT_MENU, self.OnTaskBarChange, id=self.TBMENU_CHANGE)
        self.Bind(wx.EVT_MENU, self.OnTaskBarRemove, id=self.TBMENU_REMOVE)

    def CreatePopupMenu(self):
        """
        This method is called by the base class when it needs to popup
        the menu for the default EVT_RIGHT_DOWN event.  Just create
        the menu how you want it and return it from this function,
        the base class takes care of the rest.
        """
        menu = wx.Menu()
        menu.Append(self.TBMENU_RESTORE, "Restore wxPython Demo")
        menu.Append(self.TBMENU_CLOSE,   "Close wxPython Demo")
        menu.AppendSeparator()
        menu.Append(self.TBMENU_CHANGE, "Change the TB Icon")
        menu.Append(self.TBMENU_REMOVE, "Remove the TB Icon")
        return menu

    def MakeIcon(self, img):
        """
        The various platforms have different requirements for the
        icon size...
        """
        if "wxMSW" in wx.PlatformInfo:
            img = img.Scale(16, 16)
        elif "wxGTK" in wx.PlatformInfo:
            img = img.Scale(22, 22)
        # wxMac can be any size upto 128x128, so leave the source img alone....
        icon = wx.IconFromBitmap(img.ConvertToBitmap() )
        return icon
  
    def OnTaskBarActivate(self, evt):
        if self.frame.IsIconized():
            self.frame.Iconize(False)
        if not self.frame.IsShown():
            self.frame.Show(True)
        self.frame.Raise()

    def OnTaskBarClose(self, evt):
        self.frame.Close()

    def OnTaskBarChange(self, evt):
        names = [ "WXPdemo", "Mondrian", "Pencil", "Carrot" ]                
        name = names[self.imgidx]
      
        getFunc = getattr(images, "get%sImage" % name)
        self.imgidx += 1
        if self.imgidx >= len(names):
            self.imgidx = 0
          
        icon = self.MakeIcon(getFunc())
        self.SetIcon(icon, "This is a new icon: " + name)

    def OnTaskBarRemove(self, evt):
        self.RemoveIcon()