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debounce-mac
This is for those annoying moments when you wished that macOS had
XkbSetBounceKeysDelay
like Linux does.
This is a bog-simple keyboard event tap that intercepts any (identical) keystrokes that happen within a configurable time window. Magic. See here for the genesis story.
Credit where credit is due: i mostly stole this idea and sample code off another StackOverflow answer.
How do?
You should be able to make this work with something like the following:
$ make
$ sudo ./debounce
It needs root because it intercepts keystrokes.
Accessibility / permissions
You might get an error something like the following, even when running as root.
$ sudo ./debounce
2019-03-03 10:47:02.194 debounce[59588:499245] Initializing an event tap.
2019-03-03 10:47:02.205 debounce[59588:499245] Unable to create event tap. Must run as root or add Accessibility privileges to this app.
2019-03-03 10:47:02.205 debounce[59588:499245] No Event tap in place! You will need to call listen after tapEvents to get events.
@DanGrayson kindly alerted me to the
fact that on
modern macOS, you'll need to enable universal accessibility features
to let this work. It appears that you'll need to go to System
Preferences > Privacy > Accessibility, and grant Terminal.app
permission, not the debounce
binary as you might expect.