我已经测试了三种不同的方法来捕获包含下拉菜单的 Windows 屏幕。这两种方法都没有捕获下拉菜单。有人可以向我解释如何实现这一目标吗？
要捕获的图像：
所有三种方法捕获后的结果图像
但是，例如在 Outlook 上，下拉列表被正确捕获：
捕获脚本：
import numpy as np
from PIL import ImageGrab
import cv2
import os
import time
import datetime
from mss.windows import MSS as mss
import win32api
import win32gui
import ctypes
user32 = ctypes.windll.user32
dtwidth = user32.GetSystemMetrics(0)
dtheight = user32.GetSystemMetrics(1)
inputkey = {}
inpkeystat = False
mouse_state = 0
CLK_EMPTY = 0
CLK_OK = 1
env = os.environ
try:
usrenv = env['TEMP']
except:
usrenv = env['TMP']
BASEDIR = os.path.join(usrenv, './')
def get_click():
global inputkey
global mouse_state
global inpkeystat
(x, y) = (0, 0)
wintext = ""
retcode = CLK_EMPTY
if inpkeystat == False:
mouse_state = win32api.GetKeyState(0x01)
inpkeystat = True
mouseleft = win32api.GetKeyState(0x01)
if mouseleft != mouse_state: # Button state changed
mouse_state = mouseleft
if mouseleft < 0:
# Left Button Pressed
x, y = win32api.GetCursorPos()
hwnd = win32gui.WindowFromPoint((x, y))
wintext = win32gui.GetWindowText(hwnd)
inpkeystat = False
retcode = CLK_OK
return retcode, wintext, (x, y)
logfile = os.path.join(BASEDIR, "scrnprintlog.txt")
date = datetime.datetime.now().strftime("%d-%m-%Y %I:%M%p")
printseq = 1
with open(logfile, "a") as myfile:
myfile.write("-------------------------------------------\n")
myfile.write(" Log screenprint test\n")
myfile.write(date)
myfile.write("\n-------------------------------------------\n")
print "-------------------------------------------"
print " Click mouse on screen to start capture"
print "-------------------------------------------"
while (True):
clkevent, clkwin, (clkx, clky) = get_click()
if clkevent == CLK_OK: break
while(True):
(ax1, ay1, ax2, ay2) = (0, 0, dtwidth, dtheight)
time.sleep(2)
#method 1
try:
winImage = ImageGrab.grab((ax1, ay1, ax2, ay2))
imgFile = 'scr-' + str(printseq) + '-pre-imggrab.png'
imgSave = os.path.join(BASEDIR, imgFile)
winImage.save(imgSave)
date = datetime.datetime.now().strftime("%d-%m-%Y %I:%M%p")
logstring = date + ': ' + imgFile + "\n"
with open(logfile, "a") as myfile:
myfile.write(logstring)
except:
pass
#method 2
try:
sct = mss()
imgFile = 'scr-' + str(printseq) + '-pre-shot.png'
imgSave = os.path.join(BASEDIR, imgFile)
sct.shot(mon=-1, output=imgSave)
date = datetime.datetime.now().strftime("%d-%m-%Y %I:%M%p")
logstring = date + ': ' + imgFile + "\n"
with open(logfile, "a") as myfile:
myfile.write(logstring)
except:
pass
#method 3
try:
printscreen_pil = ImageGrab.grab()
printscreen_numpy = np.array(printscreen_pil.getdata(),dtype='uint8')\
.reshape((printscreen_pil.size[1],printscreen_pil.size[0],3))
imgFile = 'scr-' + str(printseq) + '-pre-pil.png'
imgSave = os.path.join(BASEDIR, imgFile)
cv2.imwrite(imgSave, printscreen_numpy)
date = datetime.datetime.now().strftime("%d-%m-%Y %I:%M%p")
logstring = date + ': ' + imgFile + "\n"
with open(logfile, "a") as myfile:
myfile.write(logstring)
except:
pass
print "-------------------------------------------\n"
print "Click mouse for screen capture\n"
while (True):
clkevent, clkwin, (clkx, clky) = get_click()
if clkevent == CLK_OK: break
print "-------------------------------------------\n"
printseq += 1