Having tried a few Alt-Tab windows switcher, I want to write one to suit my own needs. Are you aware of any open source Alt-Tab windows switchers? If it already exists, I don't want to start from scratch :)
If it's source code you're after you may look at TaskSwitchXP sources: http://www.ntwind.com/software/taskswitchxp/download.html
The same company offers VistaSwitcher, however that one is not open source.
You can try AltTabAlternative : https://alttabalternative.sourceforge.io/
Sources are available at https://github.com/lokeshgovindu/AltTabAlternative
来源：https://stackoverflow.com/questions/2081517/any-open-source-alt-tab-windows-switcher-project-exists