On Aug 9, 9:20�pm, teh_sAbEr <[EMAIL PROTECTED]> wrote: > Ok, so this isn't necessarily a programming issue, but anyways. I've > managed to write that random wallpaper changer i've been wanting to > make, but i've run into a little problem. According to the MS > Knowledge Base, SystemParametersInfo() can't take a .jpg file as an > argument when changing the wallpaper (it doesn't work, i've tried it), > only .bmps so i'm stuck converting one of my many wallpapers from .jpg > to .bmp, passing that to SystemParametersInfo(), and deleting the > previous .bmp so that i don't have any duplicates. The problem with > this is that other members of my family use this computer too, and > they sometimes set the desktop wallpaper to some other, usually funny > picture they've got stored on the HD, and when I run this little > script it'll delete whatever the current wallpaper is, regardless of > whether its one of mine or not. Any suggestions on how to work around > this problem?
Why not rename the file instead of deleting it? > > #random wallpaper changer! > import win32gui #use this to change the wallpaper. > import os > import os.path > import random > import Image > SPI_SETDESKWALLPAPER = 20 �#It took me WAY too long to find them. > SPI_GETDESKWALLPAPER = 115 #I should keep these handy. > > def RandomlySelectWallpaper(filePaths): > � � CurrentWallpaper = > win32gui.SystemParametersInfo(SPI_GETDESKWALLPAPER) > � � while True: > � � � � index = random.randint(0,len(filePaths)-1) > � � � � RandomlySelectedWallpaper = filePaths[index] > � � � � if RandomlySelectedWallpaper <> CurrentWallpaper: > � � � � � � break > � � print RandomlySelectedWallpaper > � � return RandomlySelectedWallpaper #it should be a string... > > def ChangeDesktopWallpaper(RandomlySelectedWallpaper): > � � #so the RIGHT way to do this would be to use > � � #win32gui.SystemParametersInfo() to change the wallpaper. > � � #1) we convert the image to .bmp. > � � #Delete the old wallpaper, actual delete occurs after new > wallpaper has been set. > � � pathToCurrentWall = > win32gui.SystemParametersInfo(SPI_GETDESKWALLPAPER) > � � root,extension = os.path.splitext(RandomlySelectedWallpaper) > � � newFileName = root + '.bmp' > � � print "Wallpaper to delete: ", pathToCurrentWall > � � try: > � � � � #every so often something goes wrong at this stage in the > script > � � � � #and I can't figure out what. Something raises an IOError. > � � � � Image.open(RandomlySelectedWallpaper).save(newFileName) > � � � � print "File saved!" > � � except IOError: > � � � � print "Error while converting, please check filepath and > permissions." > � � � � print "Program will restart in an attempt to generate a > correct wallpaper." > � � � � Main() > � � win32gui.SystemParametersInfo(SPI_SETDESKWALLPAPER,newFileName, > 1+2) > � � print "Removing: ", pathToCurrentWall > � � os.remove(pathToCurrentWall) > > def Main(): > � � #woot. > � � listOfWallpaperPaths = GenerateListOfWallpapers() > � � RandomlySelectedWall = > RandomlySelectWallpaper(listOfWallpaperPaths) > � � ChangeDesktopWallpaper(RandomlySelectedWall) > > Main() -- http://mail.python.org/mailman/listinfo/python-list
