Function key / complex modification (Question not issue)

[Toadby]

Hi! So in the "Function keys" tab there is is an option to use the F1-12 keys as standard function keys, and have fn+F1-12 bind to the keys' special features. I would like to set up a rule to have this feature enabled only when a certain application is selected. I have tried remapping F1 by mapping 112 to 58, as well as mapping 112 to fn+112. This might be an issue with the game (the application I want to use this for is a game) because I also tried binding 112 to "w" and couldn't move forward with it. It just functioned as the normal brightness decrement. When I had it bound to 58, it didn't do anything at all. I could also just be writing my rules wrong so I will put the simplest one (112 -> w) below. The thing is when I use the checkbox, it works fine and does what it should! So I would love to sort out a way to essentially just have that checkbox apply for the one application.

Even if I don't end up being able to do this, I've already accomplished what I wanted to when I downloaded the application - just with simple modifications - so I'm totally happy! Thanks :)

  "title": "Function Key Swap",
  "rules": [
    {
      "description": "f1 -> w",
      "manipulators": [
        {
          "type": "basic",
          "from": {
            "key_code": 112
          },
          "to": {
            "key_code": "w"
          },
          "conditions": [
            {
              "type": "frontmost_application_if",
              "bundle_identifiers": [
                "^net\\.java\\.openjdk\\.cmd"
              ]
            }
          ]
        }
      ]
    }
  ]
}```
This didn't seem to do anything, and the F1 key still functioned as brightness decrement. I have tried this with and without checking for the application being active.

[stale[bot]]

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[harmtemolder]

I actually built the same thing for a couple of my apps:

{
  "title": "(Atom, iTerm, muCommander, PyCharm, Crusader Kings II) Use function keys as function keys",
  "maintainers": [
    "harmtemolder"
  ],
  "rules": [{
    "description": "(Atom, iTerm, muCommander, PyCharm, Crusader Kings II) Use function keys as function keys",
    "manipulators": [{
        "type": "basic",
        "from": {
          "key_code": "f1",
          "modifiers": {
            "optional": [
              "any"
            ]
          }
        },
        "to": [{
          "key_code": "f1"
        }],
        "conditions": [{
          "type": "frontmost_application_if",
          "file_paths": [
            "ck2\\.app"
          ],
          "bundle_identifiers": [
            "com.github.atom",
            "com.mucommander.muCommander",
            "com.googlecode.iterm2",
            "com.jetbrains.pycharm"
          ]
        }]
      },
      {
        "type": "basic",
        "from": {
          "key_code": "f2",
...

I use this with the checkbox unchecked and it works.

Hope this helps you get it sorted and I might just add my implementation to the repository.

[Toadby]

Thank you! It looks like your code got cut off - I can't click the 3 dots at the bottom to expand...

[Toadby]

I am new to bundle identifiers so if you have any info on getting the ID from an active app, that would be useful! I am working with Minecraft, which has a launcher that then runs the game. I can find the ID for the launcher but I'm confused by the game just running as "java" :') I can probably take a look at this later and see if I can remove the "frontmost_application_if" condition though!

[harmtemolder]

Thank you! It looks like your code got cut off - I can't click the 3 dots at the bottom to expand...

I cut it off on purpose, from there it just repeats itself 12 times (for all 12 function keys). Sorry for not explaining that.

I am new to bundle identifiers so if you have any info on getting the ID from an active app, that would be useful! I am working with Minecraft, which has a launcher that then runs the game. I can find the ID for the launcher but I'm confused by the game just running as "java" :') I can probably take a look at this later and see if I can remove the "frontmost_application_if" condition though!

Have you tried “Launch EventViewer...” when you click the Karabiner icon in your menu bar? That has a “Frontmost application” tab. Keep that open and switch to Minecraft. Hope that helps.

[Toadby]

Ah thank you! I forgot about the EventViewer :) Looks like I'll have to use the application path because no identifier showed up, but now I know that that's an option too ! "bundle_identifier": "", "file_path": "/path/to/file" Thanks for your responses! I am working on other stuff rn but I should be able to recreate your method when I get around to it :) appreciate the help

[harmtemolder]

@Toadby It's not reflected on https://ke-complex-modifications.pqrs.org/ yet, but I added my setup to the repository. You should be able to import it by pasting this into your browser's address bar:

karabiner://karabiner/assets/complex_modifications/import?url=https://raw.githubusercontent.com/pqrs-org/KE-complex_modifications/master/public/json/function_keys.json

After importing, you can find and edit it in ~/.config/karabiner/assets/complex_modifications.