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In X11, is there a way to configure the keyboard so that the behavior of the context menu key is as follows:

  • KeyPress opens the context menu.
  • As long as the key is held down, the menu stays open and can be navigated with the arrow keys.
  • KeyRelease executes the highlighted action (or closes the menu, if nothing is highlighted).

Ideally, there would also be a way to return the menu to the initial "nothing highlighted state" using only the arrow keys as well.

Is this possible?

closed as off-topic by Gilles, DarkHeart, Satō Katsura, phk, Anthon May 18 '17 at 22:03

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    It's certainly possible, but you need a "toolkit" that supports it, or you need to write your own widgets, or modify existing source. – dirkt May 17 '17 at 11:01
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    I'm voting to close this question as off-topic because it's a programming question. You can ask programming questions on Stack Overflow, but you'll have to be more specific: how to do this depends entirely on which widget toolkit you're using. – Gilles May 17 '17 at 22:22