问题
Spotify recently added a feature where the taskbar icon would have a red iOS-style badge with the number of songs in your inbox.
The badge itself is definitely part of the icon, but I was wondering if the number might be added with an official API.
If not, how might they be doing it? I've never had more than a few songs in my inbox, so maybe it just doesn't shows 1-9 and then 10+ or something, or could they be dynamically creating the image and setting it as the icon?
I wasn't aware you could change the icon while the app is running.
回答1:
ITaskBarList3::SetOverlayIcon is what you're looking for.
来源：https://stackoverflow.com/questions/7852873/is-there-a-windows-api-for-adding-badges-to-taskbar-icons