Python实现截屏的函数

# -*- coding: cp936 -*- 
import time,Image 
import os, win32gui, win32ui, win32con, win32api 
def window_capture(dpath): 
  ''''' 
截屏函数,调用方法window_capture('d:\\') ,参数为指定保存的目录 
返回图片文件名,文件名格式:日期.jpg 如:2009328224853.jpg 
  ''' 
  hwnd = 0 
  hwndDC = win32gui.GetWindowDC(hwnd)  
  mfcDC=win32ui.CreateDCFromHandle(hwndDC)  
  saveDC=mfcDC.CreateCompatibleDC()  
  saveBitMap = win32ui.CreateBitmap()  
  MoniterDev=win32api.EnumDisplayMonitors(None,None) 
  w = MoniterDev[0][2][2] 
  h = MoniterDev[0][2][3] 
  #print w,h　　　#图片大小 
  saveBitMap.CreateCompatibleBitmap(mfcDC, w, h)  
  saveDC.SelectObject(saveBitMap)  
  saveDC.BitBlt((0,0),(w, h) , mfcDC, (0,0), win32con.SRCCOPY) 
  cc=time.gmtime() 
  bmpname=str(cc[0])+str(cc[1])+str(cc[2])+str(cc[3]+8)+str(cc[4])+str(cc[5])+'.bmp' 
  saveBitMap.SaveBitmapFile(saveDC, bmpname) 
  Image.open(bmpname).save(bmpname[:-4]+".jpg") 
  os.remove(bmpname) 
  jpgname=bmpname[:-4]+'.jpg' 
  djpgname=dpath+jpgname 
  copy_command = "move %s %s" % (jpgname, djpgname) 
  os.popen(copy_command) 
  return bmpname[:-4]+'.jpg' 
#调用截屏函数   
window_capture('d:\\')