我正在使用以下代码更改我的Windows桌面背景
ctypes.windll.user32.SystemParametersInfoW(20, 0, "C:/image/jkk7LGN03aY.jpg" , 0)
我的image
目录有很多图像,我正在逐个设置它们
for path in image_list:
ctypes.windll.user32.SystemParametersInfoW(20, 0, path , 0)
time.sleep(5)
桌面背景图像突然变化,但我想要平稳过渡。我该怎么做?
这是我经常使用的纯 Python 片段:
它使用 pywin32 启用活动桌面并使用平滑过渡设置墙纸(确保您没有禁用窗口效果,否则您不会看到任何淡入淡出效果(
import ctypes
from typing import List
import pythoncom
import pywintypes
import win32gui
from win32com.shell import shell, shellcon
user32 = ctypes.windll.user32
def _make_filter(class_name: str, title: str):
"""https://learn.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-enumwindows"""
def enum_windows(handle: int, h_list: list):
if not (class_name or title):
h_list.append(handle)
if class_name and class_name not in win32gui.GetClassName(handle):
return True # continue enumeration
if title and title not in win32gui.GetWindowText(handle):
return True # continue enumeration
h_list.append(handle)
return enum_windows
def find_window_handles(parent: int = None, window_class: str = None, title: str = None) -> List[int]:
cb = _make_filter(window_class, title)
try:
handle_list = []
if parent:
win32gui.EnumChildWindows(parent, cb, handle_list)
else:
win32gui.EnumWindows(cb, handle_list)
return handle_list
except pywintypes.error:
return []
def force_refresh():
user32.UpdatePerUserSystemParameters(1)
def enable_activedesktop():
"""https://stackoverflow.com/a/16351170"""
try:
progman = find_window_handles(window_class='Progman')[0]
cryptic_params = (0x52c, 0, 0, 0, 500, None)
user32.SendMessageTimeoutW(progman, *cryptic_params)
except IndexError as e:
raise WindowsError('Cannot enable Active Desktop') from e
def set_wallpaper(image_path: str, use_activedesktop: bool = True):
if use_activedesktop:
enable_activedesktop()
pythoncom.CoInitialize()
iad = pythoncom.CoCreateInstance(shell.CLSID_ActiveDesktop,
None,
pythoncom.CLSCTX_INPROC_SERVER,
shell.IID_IActiveDesktop)
iad.SetWallpaper(str(image_path), 0)
iad.ApplyChanges(shellcon.AD_APPLY_ALL)
force_refresh()
if __name__ == '__main__':
set_wallpaper(r'D:WallpapersCoolenchanted_mountain_4k.jpg')