black screen every 15 mins

someye.py

import win32gui
import win32con
import win32api
import win32ui
import ctypes
from time import sleep

class __ClearWindow:
    def __init__(self, size):
        self.hInstance = win32api.GetModuleHandle()
        self.className = "GDIWipeWindow"

        wndClass = win32gui.WNDCLASS()
        wndClass.lpfnWndProc = self.wndProc
        wndClass.hInstance = self.hInstance
        wndClass.lpszClassName = self.className
        try:
            win32gui.RegisterClass(wndClass)
        except Exception:
            pass

        self.hwnd = win32gui.CreateWindowEx(win32con.WS_EX_TOPMOST | win32con.WS_EX_LAYERED | win32con.WS_EX_TOOLWINDOW, self.className, None,
            win32con.WS_POPUP, 0, 0, size[0], size[1], None, None, self.hInstance, None)

        win32gui.ShowWindow(self.hwnd, win32con.SW_SHOW)
        win32gui.UpdateWindow(self.hwnd)

        self.hdc = win32gui.GetDC(self.hwnd)
        self.dc = win32ui.CreateDCFromHandle(self.hdc)
        self.dc.FillSolidRect((0, 0, 1920, 1080), win32api.RGB(255, 255, 255))  # White background
        # OR
        # self.dc.FillSolidRect((0, 0, 1920, 1080), win32api.RGB(0, 0, 0))  # Black background

    def wndProc(self, hwnd, msg, wParam, lParam):
        if msg == win32con.WM_DESTROY:
            win32gui.PostQuitMessage(0)
        return win32gui.DefWindowProc(hwnd, msg, wParam, lParam)

    def destroy(self):
        # Release DC and Destroy Window
        self.dc.DeleteDC()
        win32gui.DestroyWindow(self.hwnd)

hdc = win32gui.GetDC(0)

while True:
    sleep(15 * 60)
    for i in range(50):
        win32gui.FillRect(hdc, (0, 0, 1920, 1080), win32gui.CreateSolidBrush(0))
        sleep(0.05)


    user32 = ctypes.windll.user32
    user32.SetProcessDPIAware()
    wipe = __ClearWindow([user32.GetSystemMetrics(0), user32.GetSystemMetrics(1)])
    sleep(1)
    wipe.destroy()

Draws black square on your screen every 15 mins. The original idea was to reminder to look in different directions to relive eye tension