On macOS the CommandCtrlSpace shortcut opens an Emoji picker which can be expanded into a Special Characters picker.

But when I type this shortcut on Emacs in order to input a character, instead of seeing the picker, I see the message

<C-s-268632064> is undefined

How can I make it show the picker instead?

  • 4
    Someone will have to check Apple's developer documentation, but I suspect that the application must explicitly ask the OS to display this UI element. If it were truly an OS-wide keyboard shortcut, then Emacs would never see it at all. – db48x Jan 1 '18 at 2:50

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