PySimpleGUI/DemoPrograms/Demo_OpenCV_4_Line_Program.py

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import cv2, PySimpleGUI as sg
# Make the window
window, cap = sg.Window('Demo Application - OpenCV Integration', [[sg.Image(filename='', key='image')], ], location=(800, 400)), cv2.VideoCapture(0)
# Loop reading video frames
while window(timeout=20)[0] is not None:
# Read a video frame and write it to the window
window['image'](data=cv2.imencode('.png', cap.read()[1])[1].tobytes())