本文实例讲述了Python实现截屏的函数。分享给大家供大家参考。具体如下:
1.可指定保存目录.
2.截屏图片名字以时间为文件名
3.截屏图片存为JPG格式图片,比BMP小多的,一个1024*800的截屏BMP有3M多,一个1024*800的JPG只有300K左右.
就可做一个简单的监控了,每10秒截一屏,放到一个指定隐藏的文件夹里,基本掌握机子的使用了,适合监控自家小孩的使用情况
# -*- 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:\\')
希望本文所述对大家的Python程序设计有所帮助。

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