LCTL_T with KC_CAPS doesn't work as intended

[squarefrog]

I'm trying to set the a key to function as a LCTL when held, but CAPS when tapped. To do this I use CTL_T(KC_CAPS), however it doesn't function as I'd expect. It seems to toggle CAPS on and off immediately.

If I use a different key for CAPS I can see that tapping the mapped control key turns it off.

Is this a limitation of this CTL_T, or is there another way I can do this?

[zzz2496]

Hi, What keyboard are you using? I tried the same thing, but I use left shift instead. I was successful with several quirks.

Here's what I did:

1. You need to enable Tap Dance - https://docs.qmk.fm/#/feature_tap_dance
2. Add this into your rules.mk file TAP_DANCE_ENABLE = yes
3. Add this under #include "keymap_nordic.h" in your keymap.c file

   
   //TAP DANCE
   int IS_CAPS = 0;
   enum {
   TD_SHIFT_CAPS = 0,
   };

void dance_fc_finished (qk_tap_dance_state_t state, void user_data) { if (state->count == 1) { register_code (KC_LSHIFT); }else if (state->count == 2) { if (IS_CAPS == 0) { register_code (KC_LSHIFT); IS_CAPS = 1; ergodox_right_led_3_on(); }else{ unregister_code (KC_LSHIFT); IS_CAPS = 0; } } }

void dance_fc_reset (qk_tap_dance_state_t state, void user_data) { if (state->count == 1) { unregister_code (KC_LSHIFT); ergodox_right_led_3_off(); } }

//Tap Dance Definitions/ qk_tap_dance_action_t tap_dance_actions[] = { [TD_SHIFT_CAPS] = ACTION_TAP_DANCE_FN_ADVANCED(NULL, dance_fc_finished, dance_fc_reset), // Other declarations would go here, separated by commas, if you have them }; //In Layer declaration, add tap dance item in place of a key code //TAP DANCE

4. In your keymap, put TD(TD_SHIFT_CAPS) on the left shift.

Single tap on left shift will send normal shift, double tap left shift will hold the button until you press it again. I never tried with ctrl. You can try and modify my code, see if it will fit your needs.

Damir.

[squarefrog]

Thanks for the reply. I’m using an original ergodox, with the ergodox-ez profile. That wasn’t quite what I wanted, I wanted to have control work as control when held, but if tapped, it should toggle caps lock. The reason is I remap caps lock to control, but sometimes it’s be nice to still have caps lock without losing a button.

However in the mean time, I think I like the idea of a dual action shift, so that’s definitely tide me over until I can play around more. Thanks again.

[zzz2496]

@squarefrog You're most welcome. You can easily modify my source code to fit your needs. There is a latching capslock support in QMK IIRC, so you can use it along with Tap Dance on a CTRL assigned button.