如何在python中设置桌面背景？ （视窗） [英] How do I set the desktop background in python? (windows)

问题描述

这就是我要尝试的：

import ctypes
import os
drive = "F:\\"
folder = "Keith's Stuff"
image = "midi turmes.png"
image_path = os.path.join(drive, folder, image)
SPI_SETDESKWALLPAPER = 20 
ctypes.windll.user32.SystemParametersInfoA(SPI_SETDESKWALLPAPER, 0, image_path, 3)

基本上，此代码显然应该将桌面背景设置为midi turmes.png，它会更改桌面，但是，由于某些奇怪的原因，它始终是绿色背景（我在Windows中的个性化设置是位于图片）如何解决此问题并使桌面看起来像这样？： http：//i.imgur。 com / VqMZF6H.png

Basicaly, this code is obviously supposed to set the desktop background to midi turmes.png, it changes the desktop, however, for some odd reason, it's always a green background (my personalized settings in windows is a green background behind the image) how do I fix this and make the desktop look like this?: http://i.imgur.com/VqMZF6H.png

推荐答案

以下对我有用。我正在使用Windows 10 64位和Python 3。

The following works for me. I'm using Windows 10 64-bit and Python 3.

import os
import ctypes
from ctypes import wintypes

drive = "c:\\"
folder = "test"
image = "midi turmes.png"
image_path = os.path.join(drive, folder, image)

SPI_SETDESKWALLPAPER  = 0x0014
SPIF_UPDATEINIFILE    = 0x0001
SPIF_SENDWININICHANGE = 0x0002

user32 = ctypes.WinDLL('user32')
SystemParametersInfo = user32.SystemParametersInfoW
SystemParametersInfo.argtypes = ctypes.c_uint,ctypes.c_uint,ctypes.c_void_p,ctypes.c_uint
SystemParametersInfo.restype = wintypes.BOOL
print(SystemParametersInfo(SPI_SETDESKWALLPAPER, 0, image_path, SPIF_UPDATEINIFILE | SPIF_SENDWININICHANGE))

重要的是使如果使用 SystemParametersInfoW ，请确保对 image_path 使用Unicode字符串，如果使用，则使用字节字符串SystemParametersInfoA 。请记住，在Python 3中，字符串是默认的Unicode。

The important part is to make sure to use a Unicode string for image_path if using SystemParametersInfoW, and a byte string if using SystemParametersInfoA. Remember that in Python 3 strings are default Unicode.

设置 argtypes 和<$ c也是一种好习惯$ c>重新输入。您甚至可以撒谎并将第三个argtypes参数设置为 SystemParametersInfoW 的 c_wchar_p ，然后ctypes将验证您是否传递Unicode字符串而不是字节字符串。

It is also good practice to set argtypes and restype as well. You can even "lie" and set the third argtypes parameter to c_wchar_p for SystemParametersInfoW and then ctypes will validate that you are passing a Unicode string and not a byte string.

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