What does Command+Shift+3 do?
On a Mac, Command+Shift+3 captures the full screen. Use it when you want to screenshot (full screen) in that application; other apps may assign the same keys differently.
Recorded actions and binding evidence
macOS
macOS · System & Display
Screenshot (Full Screen) — Save a screenshot of the entire screen to the Desktop
Cmd + Shift + 3
· Source: Apple: Take a screenshot on Mac
Also works in: iPhone / iOS.
Context
Full-display capture versus a selected region. A full-screen capture can include notifications and multiple displays. Check the save destination and inspect the image before sharing; a region capture is a different command.
Use the binding for your application and platform. Custom keymaps, keyboard layouts and intercepted system keys can change the behavior you observe.
Practical checks
- Focus the application whose recorded action you intend to use.
- Check whether a custom keymap, keyboard language, browser extension or remote session intercepts these keys.
- Consult the application's shortcut settings and source links before choosing a platform equivalent.
Continue your task
Build a shortcut list for the apps you actually use.
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