For the Alt-Tab command to affect the host computer—allowing a user to, for example, switch from a game to a Discord window on the host PC—Moonlight must be configured to capture system-level shortcuts. Moonlight offers a "Capture System Keys" or "Capture Alt-Tab" setting within its configuration menu. When enabled, this feature traps the keystroke before the client OS can process it, sending the signal exclusively to the host. Consequently, the host PC executes the window switch, changing the focus of the remote session without minimizing the streaming client on the user's screen.
Alt Tab is a keyboard shortcut that allows you to switch between open windows and applications on your PC. In Moonlight, this feature is implemented to provide a seamless gaming experience on your Android device. alt tab in moonlight
Look for the option "Capture system keyboard shortcuts" and set it to "In Fullscreen" . For the Alt-Tab command to affect the host
If you need to switch between controlling the local and remote host frequently, use the built-in toggle: Press Ctrl + Alt + Shift + Z . Consequently, the host PC executes the window switch,