Every key that's not defined in a keymap gets passed through verbatim, so you can use an empty transient keymap to implement a "passthrough" mode:
(def passthrough-mode-keymap (:new-keymap (in jwno/context :key-manager)))
(:define-key passthrough-mode-keymap
"Win + Ctrl + Alt + P"
:pop-keymap
"Exit passthrough mode")
(:define-key root-keymap
"Win + Ctrl + Alt + P"
[:push-keymap passthrough-mode-keymap]
"Passthrough mode")
(:set-keymap (in jwno/context :key-manager) root-keymap)While this passthrough mode is active, every key except Win + Ctrl + Alt + P gets passed through, until you press Win + Ctrl + Alt + P again.
Or, if you only need a one-shot passthrough key, use an empty mulpi-level keymap instead:
(:define-key root-keymap
"Win + Ctrl + Shift + P Enter"
:nop
"Cancel")Any key following Win + Ctrl + Shift + P, except Enter, gets passed through, then Jwno automatically resets itself to the root keymap. You can press Enter midway to cancel this "one-shot passthrough " operation.