python tkinter库实现气泡屏保和锁屏
人气:0显示效果如下:
代码:
import random import tkinter import threading from ctypes import * class RandomBall(object): """ 定义关于球的类 """ def __init__(self, canvas, screen_width, screen_height): """初始化画布和屏幕尺寸""" self.item = None self.canvas = canvas # 定义球的初始位置(x,y),此坐标为球的圆心,位置随机生成 self.x_pos = random.randint(10, int(screen_width) - 20) self.y_pos = random.randint(10, int(screen_height) - 20) # 定义球在x、y方向上的移动速度,速度随机给定 self.x_velocity = random.randint(6, 12) self.y_velocity = random.randint(6, 12) # 将屏幕尺寸的形参赋给函数内部 self.screen_width = screen_width self.screen_height = screen_height # 定义球的半径,半径大小随机给定 self.radius = random.randint(40, 70) # 定义球的颜色 c = lambda: random.randint(0, 255) self.color = '#%02x%02x%02x' % (c(), c(), c()) def create_ball(self): """ 创建球的函数""" # 通过圆心,获取一矩形左上角和右下角的坐标 x1 = self.x_pos - self.radius y1 = self.y_pos - self.radius x2 = self.x_pos + self.radius y2 = self.y_pos + self.radius # tkinter没有创建圆的函数,通过创建椭圆的方式来生成圆 self.item = self.canvas.create_oval(x1, y1, x2, y2, fill=self.color, outline=self.color) def move_ball(self): """创建球移动的函数""" # 球的(x,y)坐标根据速度变化不断更新 self.x_pos += self.x_velocity self.y_pos += self.y_velocity # 当球撞到屏幕边界后,反弹的算法判断 if self.x_pos + self.radius >= self.screen_width: self.x_velocity = -self.x_velocity if self.x_pos - self.radius <= 0: self.x_velocity = -self.x_velocity if self.y_pos + self.radius >= self.screen_height: self.y_velocity = -self.y_velocity if self.y_pos - self.radius <= 0: self.y_velocity = -self.y_velocity # 在画布上移动图画 self.canvas.move(self.item, self.x_velocity, self.y_velocity) class ScreenSaver(object): """ 定义屏保的类 """ def __init__(self): self.balls = [] # 每次启动程序,球的数量随机 self.num_balls = random.randint(20, 60) # 生成root主窗口 self.root = tkinter.Tk() # 获取屏幕尺寸,作为主窗口尺寸 self.width = self.root.winfo_screenwidth() self.height = self.root.winfo_screenheight() # 取消边框 self.root.overrideredirect(1) # 调整背景透明度 self.root.attributes('-alpha', 1) # 点击鼠标、移动鼠标、敲击键盘时退出程序 # self.root.bind('<Motion>', self.my_quit) # self.root.bind('<Any-Button>', self.my_quit) self.root.bind('<Control-Shift-KeyPress-L>', self.my_quit) # 创建画布,包括画布的归属、尺寸和背景颜色 self.canvas = tkinter.Canvas(self.root, width=self.width, height=self.height, bg="black") self.canvas.pack() # 根据num_balls随机生成的数值,在画布上生成球 for i in range(self.num_balls): # 调用RandomBall函数,自动初始化出不同大小、位置和颜色的球 ball = RandomBall(self.canvas, screen_width=self.width, screen_height=self.height) # 调用生成球的函数 ball.create_ball() self.balls.append(ball) self.run_screen_saver() self.root.mainloop() def run_screen_saver(self): """调动球运动的函数""" for ball in self.balls: ball.move_ball() # after函数是每200毫秒后启动一个函数,第二个参数为需启动的函数,类似于递归 self.canvas.after(50, self.run_screen_saver) def my_quit(self, event): """定义一个停止运行的函数""" self.root.destroy() print(event) class LockScreen(object): """定义锁屏的类""" def __init__(self): self.HWND_BROADCAST = 0xffff self.WM_SYS_COMMAND = 0x0112 self.SC_MONITOR_POWER = 0xF170 self.MonitorPowerOff = 2 self.SW_SHOW = 5 def win_dll(self): """调用windll函数""" windll.user32.PostMessageW(self.HWND_BROADCAST, self.WM_SYS_COMMAND, self.SC_MONITOR_POWER, self.MonitorPowerOff) shell32 = windll.LoadLibrary("shell32.dll") shell32.ShellExecuteW(None, 'open', 'rundll32.exe', 'USER32,LockWorkStation', '', self.SW_SHOW) if __name__ == '__main__': ScreenSaver() t = threading.Thread(target=LockScreen().win_dll()) t.start()
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