qmk-keychron-q3-colemak-dh/keyboards/rmkeebs/rm_numpad/keymaps/ortho/keymap.c

/* Copyright 2021 RuckerMachine
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
#include QMK_KEYBOARD_H

enum custom_keycodes {
  DBL_ZRO = SAFE_RANGE,
};

bool process_record_user(uint16_t keycode, keyrecord_t *record) {
  switch (keycode) {
    case DBL_ZRO:
      if (record->event.pressed) {
        // when keycode DBL_ZRO is pressed
        SEND_STRING("00");
      } else {
        // when keycode DBL_ZRO is released
      }
      break;

  }
  return true;
};

const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
    /* Base */
    LAYOUT_ortho_6x4(
        KC_MPLY, KC_MPRV, KC_MNXT, KC_MUTE,
        KC_NUM,  KC_PSLS, KC_PAST, KC_PMNS, 
        KC_P7,   KC_P8,   KC_P9,   KC_EQL,
        KC_P4,   KC_P5,   KC_P6,   KC_PPLS, 
        KC_P1,   KC_P2,   KC_P3,   KC_PENT,
        KC_P0,   DBL_ZRO, KC_PDOT, KC_DEL
    )
};