opencv窗口必须出现在所有窗口前面

我不知道你的完整代码,但是当我这样试的时候,它就在窗口前面。希望有帮助!

import tkinter as tk
from tkinter import *
import cv2

class GUI:
    def __init__(self, master):
        self.event = 1
        self.master = master
        self.img_res = img = cv2.imread('image.jpg', 0)
        self.b = Button(self.master, text='Show image', command=self.window)
        self.b.pack()

    def window(self, event=None):
        while self.event == 1:
            cv2.imshow('image', self.img_res)
            k = cv2.waitKey(1) & 0xFF
            if k == ord('m'):
                res = 1
                break
            elif k == 27:
                break


def main(): 
    root = tk.Tk()
    app = GUI(root)
    root.mainloop()

if __name__ == '__main__':
    main()

添加:

您也可以尝试导入类型

import ctypes

ctypes.windll.kernel32.GetConsoleWindow()