pywinauto客户端自动化---窗口进行截图

def capture_as_image(self, rect=None):
        """Return a PIL image of the control.

        See PIL documentation to know what you can do with the resulting
        image.
        """control_rectangle =self.rectangle()
        if not (control_rectangle.width() andcontrol_rectangle.height()):
            returnNone

        #PIL is optional so check first
        if notImageGrab:
            print("PIL does not seem to be installed. "
                  "PIL is required for capture_as_image")
            self.actions.log("PIL does not seem to be installed. "
                             "PIL is required for capture_as_image")
            returnNone

        ifrect:
            control_rectangle =rect

        #get the control rectangle in a way that PIL likes it
        width =control_rectangle.width()
        height =control_rectangle.height()
        left =control_rectangle.left
        right =control_rectangle.right
        top =control_rectangle.top
        bottom =control_rectangle.bottom
        box =(left, top, right, bottom)

        #check the number of monitors connected
        if (sys.platform == 'win32') and (len(win32api.EnumDisplayMonitors()) > 1):
                hwin =win32gui.GetDesktopWindow()
                hwindc =win32gui.GetWindowDC(hwin)
                srcdc =win32ui.CreateDCFromHandle(hwindc)
                memdc =srcdc.CreateCompatibleDC()
                bmp =win32ui.CreateBitmap()
                bmp.CreateCompatibleBitmap(srcdc, width, height)
                memdc.SelectObject(bmp)
                memdc.BitBlt((0, 0), (width, height), srcdc, (left, top), win32con.SRCCOPY)

                bmpinfo =bmp.GetInfo()
                bmpstr =bmp.GetBitmapBits(True)
                pil_img_obj = Image.frombuffer('RGB',
                                               (bmpinfo['bmWidth'], bmpinfo['bmHeight']),
                                               bmpstr,
                                               'raw',
                                               'BGRX',
                                               0,
                                               1)
        else:
            #grab the image and get raw data as a string
            pil_img_obj =ImageGrab.grab(box)

        return pil_img_obj

#coding:utf-8
from pywinauto importApplication

#打开记事本
app = Application().start(r'C:WindowsSystem32
otepad.exe')
win = app['无标题 - 记事本']
#截图进行保存
a = win.capture_as_image().save('123.png')