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win32example.py
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win32example.py
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import time
import win32gui
import win32ui
import win32con
import win32api
import numpy as np
import cv2
def window_capture():
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]
saveBitMap.CreateCompatibleBitmap(mfcDC, w, h)
saveDC.SelectObject(saveBitMap)
saveDC.BitBlt((0, 0), (w, h), mfcDC, (0, 0), win32con.SRCCOPY)
im = saveBitMap.GetBitmapBits(True) # Tried False also
img = np.frombuffer(im, dtype=np.uint8).reshape((h, w, 4))
cv2.imshow("demo", img)
cv2.waitKey(1)
beg = time.time()
for i in range(100):
window_capture()
end = time.time()
print(end - beg)
cv2.destroyAllWindows()