Random Wallpaper

A utility for changing the desktop background image for in Windows

Usage

RndWallpaper (action) [options]

Available Actions:
   1. (W)allpaper             Change the wallpaper
   2. (I)nfo                  Show information related to wallpaper

Wallpaper [options] (file or folder) [ .. additional files and/or folders .. ]
 -d  (integer)                Delay number of seconds (default 0)
 -s  (style)                  Style of wallpaper (default 'Fill')
 -r                           Include subdirectories when folder is specified
 -sa [ratio]                  Detect panorama images when w/h > ratio (default 2.0)
 -m  (monitor)                Apply image only to a single monitor
 -rs (integer)                Random seed value (default system suplied)
 -fs                          When folder given, use same image for all monitors

Available Styles:
 1. Center
 2. Tile
 3. Stretch
 4. Fit
 5. Fill
 6. Span

Available Monitors:
 Primary                      Select the primary monitor
 1. \\.\DISPLAY1 (Primary)    Depth:32 Size:{X=0,Y=0,Width=1024,Height=768}
 2. \\.\DISPLAY2              Depth:32 Size:{X=1024,Y=0,Width=1024,Height=768}
 ...

Info [options]
 -m                           Show monitor information
 -w                           Show current wallpapers
 -i                           More info about current wallpaper file(s)

Build

• see https://github.com/dotnet/runtimelab/tree/feature/NativeAOT/samples/HelloWorld
• dotnet publish -r win-x64 -c release

TODO

• add better messages for hresult errors
• add more platforms (linux?)
• add an option to choose sequential images instead of just random ones from a folder
• maybe add a way to setup an image rss feed by changing windows settings
• maybe add a change settings action
• maybe add a way to download images from some sources (not sure where tho)
• add a way to change the lock screen also
  • what about the login screen ? (is that different ?)
• maybe add generators that keep state and advance each time the background is generated
  • could be several that can be cycled through
• maybe try UWP again. ?
  • https://blog.pieeatingninjas.be/2018/04/05/creating-a-uwp-console-app-in-c/
• support looking in subfolders
• maybe add support for custom fitting options
  • not sure what those would be
  • seam carving resize ?