Python:通过自定义系统级快捷键来控制程序运行

cmkzjw

　　晚上学习了下python定义系统级快捷键的方法，这里说的系统级快捷键指的是,如果当前程序窗口不为激活窗口，也能收到快捷键消息，实现的是一个控制键盘和鼠标监听的程序，如，按下Ctrl + F3,程序开始记录监控日志。本来想实现按下Ctrl + F4程序程序停止记录日志，但测试时遇到了一个没有目前还没有想到解决办法的问题，先看实现。
　　一、代码：
　　#!/usr/bin/env python# -*- coding: utf-8 -*-import pythoncomimport pyHookimport timeimport pyhkimport osimport sysimport ctypesfrom ctypes import wintypesimport win32conclass CInspectKeyAndMouseEvent:'''Function:键盘和鼠标监控类Input：NONEOutput: NONEauthor: socratesblog:http://blog.csdn.net/dyx1024date:2012-03-09''' def __init__(self, filename):self.filename = filenamedef open_file(self):self.fobj = open(self.filename,  'w') def close_file(self):self.fobj.close()    def onMouseEvent(self, event):      "处理鼠标事件"self.fobj.writelines('-' * 20 + 'MouseEvent Begin' + '-' * 20 + '\n')self.fobj.writelines("Current Time:%s\n" % time.strftime("%a, %d %b %Y %H:%M:%S", time.gmtime()))self.fobj.writelines("MessageName:%s\n" % str(event.MessageName))self.fobj.writelines("Message:%d\n" % event.Message)self.fobj.writelines("Time_sec:%d\n" % event.Time)self.fobj.writelines("Window:%s\n" % str(event.Window))self.fobj.writelines("WindowName:%s\n" % str(event.WindowName))self.fobj.writelines("Position:%s\n" % str(event.Position))self.fobj.writelines('-' * 20 + 'MouseEvent End' + '-' * 20 + '\n')return Truedef onKeyboardEvent(self, event): "处理键盘事件"   self.fobj.writelines('-' * 20 + 'Keyboard Begin' + '-' * 20 + '\n')self.fobj.writelines("Current Time:%s\n" % time.strftime("%a, %d %b %Y %H:%M:%S", time.gmtime()))self.fobj.writelines("MessageName:%s\n" % str(event.MessageName))self.fobj.writelines("Message:%d\n" % event.Message)self.fobj.writelines("Time:%d\n" % event.Time)self.fobj.writelines("Window:%s\n" % str(event.Window))self.fobj.writelines("WindowName:%s\n" % str(event.WindowName))self.fobj.writelines("Ascii_code: %d\n" % event.Ascii)self.fobj.writelines("Ascii_char:%s\n" % chr(event.Ascii))self.fobj.writelines("Key:%s\n" % str(event.Key))self.fobj.writelines('-' * 20 + 'Keyboard End' + '-' * 20 + '\n')return Truedef InspectKeyAndMouseEvent(bRunTag = False):""if bRunTag:my_event = CInspectKeyAndMouseEvent("D:\\hook_log.txt")my_event.open_file()#创建hook句柄hm = pyHook.HookManager()#监控键盘hm.KeyDown = my_event.onKeyboardEventhm.HookKeyboard()#监控鼠标hm.MouseAll = my_event.onMouseEventhm.HookMouse()#循环获取消息pythoncom.PumpMessages()my_event.close_file() else:  #程序走不到这里，直接在PumpMessages处不停地监听os._exit(0)                def handle_start_InspecEvent():"开始监控（按下Ctrl + F3）"InspectKeyAndMouseEvent(True)def handle_stop_InspecEvent():"停止监控  (按下Ctrl + F4)"InspectKeyAndMouseEvent(False)   if __name__ == "__main__":     '''Function:通过快捷键控制程序运行Input：NONEOutput: NONEauthor: socratesblog:http://blog.csdn.net/dyx1024date:2012-03-09'''  byref = ctypes.byrefuser32 = ctypes.windll.user32#定义快捷键HOTKEYS = {1 : (win32con.VK_F3, win32con.MOD_CONTROL),2 : (win32con.VK_F4, win32con.MOD_CONTROL)}#快捷键对应的驱动函数HOTKEY_ACTIONS = {1 : handle_start_InspecEvent,2 : handle_stop_InspecEvent}    #注册快捷键for id, (vk, modifiers) in HOTKEYS.items ():if not user32.RegisterHotKey (None, id, modifiers, vk):print "Unable to register id", id    #启动监听        try:msg = wintypes.MSG ()while user32.GetMessageA (byref (msg), None, 0, 0) != 0:if msg.message == win32con.WM_HOTKEY:action_to_take = HOTKEY_ACTIONS.get (msg.wParam)if action_to_take:action_to_take ()user32.TranslateMessage (byref (msg))user32.DispatchMessageA (byref (msg))finally:for id in HOTKEYS.keys ():user32.UnregisterHotKey (None, id)
二、测试
　　按下Ctrl + F3后，程序开始记录日志，正常。
　　按下Ctrl + F4后，程序并没有停止记录日志，异常。因为在记录日志时，启动了pythoncom.PumpMessages()，不停地循环来获取消息，程序不能继续往下走。目前还没有想到解决方案，明天接着想想看有没有什么好的方法。