Here's some code to set a random wallpaper from a list of images, or a list of directories or a single image. It doesn't recurse subdirectories, but, that's just as simple to add if you really require that functionality. It requires PIL.
You can set it to change the wallpaper to rotate to a new one at a specified number of minutes.
It can use any image that PIL can read (it converts it to a BMP).
# Code to rotate or set wallpaper under windows # Copyright (C) Andrew K. Milton 2007 # Released under a 2-clause BSD License # See: http://www.opensource.org/licenses/bsd-license.php import os import time import random from optparse import OptionParser from ConfigParser import SafeConfigParser from ctypes import windll from win32con import * from PIL import Image """ I recommend you create a pywallpaper.conf file that looks something like this; [directories] paths = C:\Documents and Settings\akm\My Documents\My Pictures\gb C:\Documents and Settings\akm\My Documents\My Pictures\Ralph to store the directories in rather than specifying -d multiple times on the command line""" def getDefaultDirs(): return [r'C:\Documents and Settings\All Users\Documents\My Pictures\Sample Pictures',] def setWallPaperFromBmp(pathToBmp): """ Given a path to a bmp, set it as the wallpaper """ result = windll.user32.SystemParametersInfoA(SPI_SETDESKWALLPAPER, 0, pathToBmp, SPIF_UPDATEINIFILE | SPIF_SENDWININICHANGE) if not result: raise Exception("Unable to set wallpaper.") def setWallPaper(pathToImage): """ Given a path to an image, convert it to bmp format and set it as the wallpaper""" bmpImage = Image.open(pathToImage) newPath = os.getcwd() newPath = os.path.join(newPath, 'pywallpaper.bmp') bmpImage.save(newPath, "BMP") setWallPaperFromBmp(newPath) def setWallPaperFromFileList(pathToDir): """ Given a directory choose an image from it and set it as a wallpaper """ # Image directories often contain Thumbs.db or other non-image # files or directories, try a few times to set a wallpaper, and then just give up. tries = 0 done = False while (not done) and tries < 3: try: files = os.listdir(pathToDir) image = random.choice(files) setWallPaper(os.path.join(pathToDir, image)) done = True except: tries += 1 return done def setWallPaperFromDirList(pathList): """ Given a list of directories choose a directory """ imageDir = random.choice(pathList) status = setWallPaperFromFileList(imageDir) # Don't really need to say anything if we couldn't set the # wallpaper, I think the user will notice def getImageDirectories(options): configFile = 'pywallpaper.conf' if options.configFile: configFile = options.configFile dirs = options.directories try: config = SafeConfigParser() config.readfp(open(configFile)) dirs += config.get('directories', 'paths').split('\n') except: pass if not dirs: # raise Exception("No directories defined") dirs = getDefaultDirs() return dirs def setWallPaperFromConfigDirs(options): setWallPaperFromDirList(getImageDirectories(options)) def getCommandLineOptions(): parser = OptionParser() parser.add_option("-t", "--time", dest="change_time", help = "Change wallpaper time in minutes (0 = change once and exit [default])", default = 0, type = "int") parser.add_option("-i", "--image", dest="singleImage", default = None, help = "Set wallpaper to this image and exit (overrides -d)") parser.add_option("-d", "--directory", dest="directories", default = [], action="append", type="string", help = "Add an image directory") parser.add_option("-c", "--config", dest="configFile", default = None, help = "path to alternate config file (default <working dir>/pywallpaper.conf)") parser.add_option("-w", "--workingdir", dest="cwd", default=".", help = "Working Directory (default .)") (options, args) = parser.parse_args() return (options, args) if __name__ == '__main__': options, args = getCommandLineOptions() if options.cwd and options.cwd != '.': os.cwd(cwd) if options.singleImage: setWallPaper(options.singleImage) elif not options.change_time: setWallPaperFromConfigDirs(options) else: dirs = getImageDirectories(options) sleepTime = options.change_time * 60.0 while True: setWallPaperFromDirList(dirs) time.sleep(sleepTime)
5 comments:
Thanks for this, very useful!
I think these changes will not persist system restart since registry keys
HKEY_CURRENT_USER/Control Panel/Desktop
Wallpaper REG_SZ
ConvertedWallpaper REG_SZ
OriginalWallpaper REG_SZ
WallpaperStyle REG_SZ
have not been changed
The wallpaper persists just fine...
On XP, Vista and Windows-7
I have a more comprehensive multi-monitor version too. Monitors can be in ANY configuration, not just stacked, they can have overlapping offsets.
I should do an updated post.
Hey. I stumbled upon this old post searching for a way to set the WindowsStyle and TileWallpaper keys through the same code. Any way to do that?
And will that require administrative access? The current code of windll.user32.SetParam... doesn't need admin privileges.
Thanks.
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