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whenever you add/remove picture files in the folder), the order of the files in the listbox is going to be
the same no matter how many times the program is
run, hence there’s no need to save the filename. Also
it’s a whole lot easier to search if a particular wallpaper is already set. I’ll build a string of all the previously shown wallpapers and see if the new random number is present. If it’s not there in the list, I
have found my new wallpaper. (I could have done
this with a DataStore but I didn’t want to create
another object.)
When all the pictures in the directory are shown
once, all the history in the profile file has to be
cleared; re-creating the file does that as a side effect.
Before you build the executable change the
instance variable as it stores the folder location
where all your wallpapers are stored.
Now that the program is ready, you can use the
Windows scheduler to run this program as often as
you wish. I currently have over 200 pictures and the
scheduler runs this program every 15 minutes. You
can also run it as often as every minute to create a
slide-show effect. If you prefer, you can always code
the Windows timer event.
Note: If you like to run this program interactively,
comment the close(this) in the open event of the
window. ▼
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