# -*- coding: utf-8 -*-
# 使用ctypes模块进行操作
from ctypes import *
import time
#user32 = windll.LoadLibrary('user32.dll')
#user32.LockWorkStation()
HWND_BROADCAST = 0xffff
WM_SYSCOMMAND = 0x0112
SC_MONITORPOWER = 0xF170
MonitorPowerOff = 2
SW_SHOW = 5

def main():
    windll.user32.PostMessageW(HWND_BROADCAST, WM_SYSCOMMAND,
                               SC_MONITORPOWER, MonitorPowerOff)
    shell32 = windll.LoadLibrary("shell32.dll")
    shell32.ShellExecuteW(None,'open', 'rundll32.exe',
                          'USER32,LockWorkStation','',SW_SHOW)
def printSleep():
    tmp = 10
    load = 60
    for x in range(tmp):
       print(load*(tmp-x),"秒后锁屏")
       time.sleep(load)
       
    
if __name__ == "__main__":
    print( "Win32 Application in python" )
    printSleep()
    main()