Python实现程序的单一实例用法分析

WBOY
Release: 2016-06-10 15:10:57
Original
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本文实例讲述了Python实现程序的单一实例用法。分享给大家供大家参考。具体如下:

这里先使用win32ui.FindWindow查找窗口名字,如果不存在则会抛出一个异常

import wx
import win32ui 
import win32con 
try: 
  # 首先查找该程序是否已经运行
  win = win32ui.FindWindow(None, '窗口名字')
  try: 
    if win: 
      win.ShowWindow(win32con.SW_SHOWNORMAL)
  except: 
    pass 
except: 
  # 没有找到相关窗口 
  app = wx.App() 
  main_frm = wx.Frame(None)
  main_frm.Show() 
  app.MainLoop()
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如果'窗口名字'部分未定义,则新建一个窗口。

希望本文所述对大家的Python程序设计有所帮助。

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