用python写一个动态壁纸工具

screenpv.py: use pyqt5 + opencv to open a video or camera

首先用pyqt5+opencv写一个全屏播放视频的工具

import sys
import os
import cv2

from PyQt5 import QtCore, QtGui, QtWidgets
from PyQt5.QtWidgets import *
from PyQt5.QtCore import *
from PyQt5.QtGui import QPalette, QBrush, QPixmap
import PyQt5 as pq


class Ui_MainWindow(QtWidgets.QWidget):
    def __init__(self, parent=None):
        super(Ui_MainWindow, self).__init__(parent)
        self.videoName, _ = QFileDialog.getOpenFileName(self, "Open", "", "*.mp4;;*.avi;;All Files(*)")
        self.timer_camera = QtCore.QTimer()  # 初始化定时器
        # self.cap = cv2.VideoCapture()  # 初始化摄像头
        self.cap = cv2.VideoCapture(self.videoName)
        self.CAM_NUM = 0
        self.set_ui()
        self.slot_init()
    def slot_init(self):
        self.timer_camera.timeout.connect(self.show_camera)

    def keyPressEvent(self, event):
        print("按下：" + str