3 All keycodes within quantum are numbers between `0x0000` and `0xFFFF`. Within your `keymap.c` it may look like you have functions and other special cases, but ultimately the C preprocessor will translate those into a single 4 byte integer. QMK has reserved `0x0000` through `0x00FF` for standard keycodes. These are keycodes such as `KC_A`, `KC_1`, and `KC_LCTL`, which are basic keys defined in the USB HID specification.
5 On this page we have documented keycodes between `0x00FF` and `0xFFFF` which are used to implement advanced quantum features. If you define your own custom keycodes they will be put into this range as well. Keycodes above `0x00FF` may not be used with any of the mod/layer-tap keys listed
11 |`RESET`|Put the keyboard into DFU mode for flashing|
12 |`DEBUG`|Toggles debug mode|
13 |`KC_GESC`/`GRAVE_ESC`|Acts as escape when pressed normally but when pressed with Shift or GUI will send a `~`|
14 |`KC_LSPO`|Left shift when held, open paranthesis when tapped|
15 |`KC_RSPC`|Right shift when held, close paranthesis when tapped|
16 |`KC_LEAD`|The [leader key](leader_key.md)|
17 |`FUNC(n)`/`F(n)`|Call `fn_action(n)`|
18 |`M(n)`|to call macro n|
19 |`MACROTAP(n)`|to macro-tap n idk FIXME|
23 Shortcuts for bootmagic options (these work even when bootmagic is off.)
27 |`MAGIC_SWAP_CONTROL_CAPSLOCK`|Swap Capslock and Left Control|
28 |`MAGIC_CAPSLOCK_TO_CONTROL`|Treat Capslock like a Control Key|
29 |`MAGIC_SWAP_LALT_LGUI`|Swap the left Alt and GUI keys|
30 |`MAGIC_SWAP_RALT_RGUI`|Swap the right Alt and GUI keys|
31 |`MAGIC_NO_GUI`|Disable the GUI key|
32 |`MAGIC_SWAP_GRAVE_ESC`|Swap the Grave and Esc key.|
33 |`MAGIC_SWAP_BACKSLASH_BACKSPACE`|Swap backslack and backspace|
34 |`MAGIC_HOST_NKRO`|Force NKRO on|
35 |`MAGIC_SWAP_ALT_GUI`/`AG_SWAP`|Swap Alt and Gui on both sides|
36 |`MAGIC_UNSWAP_CONTROL_CAPSLOCK`|Disable the Control/Capslock swap|
37 |`MAGIC_UNCAPSLOCK_TO_CONTROL`|Disable treating Capslock like Control |
38 |`MAGIC_UNSWAP_LALT_LGUI`|Disable Left Alt and GUI switching|
39 |`MAGIC_UNSWAP_RALT_RGUI`|Disable Right Alt and GUI switching|
40 |`MAGIC_UNNO_GUI`|Enable the GUI key |
41 |`MAGIC_UNSWAP_GRAVE_ESC`|Disable the Grave/Esc swap |
42 |`MAGIC_UNSWAP_BACKSLASH_BACKSPACE`|Disable the backslash/backspace swap|
43 |`MAGIC_UNHOST_NKRO`|Force NKRO off|
44 |`MAGIC_UNSWAP_ALT_GUI`/`AG_NORM`|Disable the Alt/GUI switching|
45 |`MAGIC_TOGGLE_NKRO`|Turn NKRO on or off|
55 #ifdef FAUXCLICKY_ENABLE
61 // Music mode on/off/toggle
66 // Music voice iterate
74 #if !MIDI_ENABLE_STRICT || (defined(MIDI_ENABLE) && defined(MIDI_BASIC))
75 MI_ON, // send midi notes when music mode is enabled
76 MI_OFF, // don't send midi notes when music mode is enabled
100 MIDI_TONE_KEYCODE_OCTAVES > 1
123 MIDI_OCTAVE_MIN = MI_OCT_N2,
124 MIDI_OCTAVE_MAX = MI_OCT_7,
125 MI_OCTD, // octave down
126 MI_OCTU, // octave up
130 MIDI_TRANSPOSE_MIN = MI_TRNS_N6,
131 MIDI_TRANSPOSE_MAX = MI_TRNS_6,
132 MI_TRNSD, // transpose down
133 MI_TRNSU, // transpose up
136 MIDI_VELOCITY_MIN = MI_VEL_1,
137 MIDI_VELOCITY_MAX = MI_VEL_9,
138 MI_VELD, // velocity down
139 MI_VELU, // velocity up
142 MIDI_CHANNEL_MIN = MI_CH1
143 MIDI_CHANNEL_MAX = MI_CH16,
144 MI_CHD, // previous channel
145 MI_CHU, // next channel
147 MI_ALLOFF, // all notes off
150 MI_PORT, // portamento
151 MI_SOST, // sostenuto
152 MI_SOFT, // soft pedal
155 MI_MOD, // modulation
156 MI_MODSD, // decrease modulation speed
157 MI_MODSU, // increase modulation speed
158 #endif // MIDI_ADVANCED
162 These keycodes control the backlight. Most keyboards use this for single color in-switch lighting.
166 |`BL_x`|Set a specific backlight level between 0-9|
167 |`BL_ON`|An alias for `BL_9`|
168 |`BL_OFF`|An alias for `BL_0`|
169 |`BL_DEC`|Turn the backlight level down by 1|
170 |`BL_INC`|Turn the backlight level up by 1|
171 |`BL_TOGG`|Toggle the backlight on or off|
172 |`BL_STEP`|Step through backlight levels, wrapping around to 0 when you reach the top.|
174 ## RGBLIGHT WS2818 LEDs
176 This controls the `RGBLIGHT` functionality. Most keyboards use WS2812 (and compatible) LEDs for underlight or case lighting.
180 |`RGB_TOG`|toggle on/off|
181 |`RGB_MOD`|cycle through modes|
182 |`RGB_HUI`|hue increase|
183 |`RGB_HUD`|hue decrease|
184 |`RGB_SAI`|saturation increase|
185 |`RGB_SAD`|saturation decrease|
186 |`RGB_VAI`|value increase|
187 |`RGB_VAD`|value decrease|
189 ## Thermal Printer (experimental)
193 |`PRINT_ON`|Start printing everything the user types|
194 |`PRINT_OFF`|Stop printing everything the user types|
196 ## Keyboard output selection
198 This is used when multiple keyboard outputs can be selected. Currently this only allows for switching between USB and Bluetooth on keyboards that support both.
202 |`OUT_AUTO`|auto mode|
204 |`OUT_BT`|bluetooth (when `BLUETOOTH_ENABLE`)|
208 These are special keycodes that simulate pressing several modifiers at once.
212 |`KC_HYPR`|Hold down LCTL + LSFT + LALT + LGUI|
213 |`KC_MEH`|Hold down LCTL + LSFT + LALT|
215 /* FIXME: Should we have these in QMK too?
216 * |`KC_LCAG`|`LCTL` + `LALT` + `LGUI`|
217 * |`KC_ALTG`|`RCTL` + `RALT`|
218 * |`KC_SCMD`/`KC_SWIN`|`LGUI` + `LSFT`|
219 * |`KC_LCA`|`LCTL` + `LALT`|
222 ### Modifiers with keys
226 |`LCTL(kc)`|`LCTL` + `kc`|
227 |`LSFT(kc)`/`S(kc)`|`LSFT` + `kc`|
228 |`LALT(kc)`|`LALT` + `kc`|
229 |`LGUI(kc)`|`LGUI` + `kc`|
230 |`RCTL(kc)`|`RCTL` + `kc`|
231 |`RSFT(kc)`|`RSFT` + `kc`|
232 |`RALT(kc)`|`RALT` + `kc`|
233 |`RGUI(kc)`|`RGUI` + `kc`|
234 |`HYPR(kc)`|`LCTL` + `LSFT` + `LALT` + `LGUI` + `kc`|
235 |`MEH(kc)`|`LCTL` + `LSFT` + `LALT` + `kc`|
236 |`LCAG(kc)`|`LCTL` + `LALT` + `LGUI` + `kc`|
237 |`ALTG(kc)`|`RCTL` + `RALT` + `kc`|
238 |`SCMD(kc)`/`SWIN(kc)`|`LGUI` + `LSFT` + `kc`|
239 |`LCA(kc)`|`LCTL` + `LALT` + `kc`|
243 Most modifiers work by being held down while you push another key. You can use `OSM()` to setup a "One Shot" modifier. When you tap a one shot mod it will remain is a pressed state until you press another key.
245 To specify a your modifier you need to pass the `MOD` form of the key. For example, if you want to setup a One Shot Control you would use `OSM(MOD_LCTL)`.
249 |`OSM(mod)`|use mod for one keypress|
250 |`OSL(layer)`|switch to layer for one keypress|
254 These keycodes will press the mod(s) when held, and the key when tapped. They only work with [basic keycodes](basic_keycodes.md).
258 |`CTL_T(kc)`/`LCTL_T(kc)`|`LCTL` when held, `kc` when tapped|
259 |`RCTL_T(kc)`|`RCTL` when held, `kc` when tapped|
260 |`SFT_T(kc)`/`LSFT_T(kc)`|`LSFT` when held, `kc` when tapped|
261 |`RSFT_T(kc)`|`RSFT` when held, `kc` when tapped|
262 |`ALT_T(kc)`/`LALT_T(kc)`|`LALT` when held, `kc` when tapped|
263 |`RALT_T(kc)`/`ALGR_T(kc)`|`RALT` when held, `kc` when tapped|
264 |`GUI_T(kc)`/`LGUI_T(kc)`|`LGUI` when held, `kc` when tapped|
265 |`RGUI_T(kc)`|`RGUI` when held, `kc` when tapped|
266 |`C_S_T(kc)`|`LCTL` + `LSFT` when held, `kc` when tapped|
267 |`MEH_T(kc)`|`LCTL` + `LSFT` + `LALT` when held, `kc` when tapped|
268 |`LCAG_T(kc)`|`LCTL` + `LALT` + `LGUI` when held, `kc` when tapped|
269 |`RCAG_T(kc)`|`RCTL` + `RALT` + `RGUI` when held, `kc` when tapped|
270 |`ALL_T(kc)`|`LCTL` + `LSFT` + `LALT` + `LGUI` when held, `kc` when tapped [more info](http://brettterpstra.com/2012/12/08/a-useful-caps-lock-key/)|
271 |`SCMD_T(kc)`/`SWIN_T(kc)`|`LGUI` + `LSFT` when held, `kc` when tapped|
272 |`LCA_T(kc)`|`LCTL` + `LALT` when held, `kc` when tapped|
274 ## US ANSI Shifted symbols
276 These keycodes correspond to characters that are "shifted" on a standard US ANSI keyboards. They do not have dedicated keycodes but are instead typed by holding down shift and then sending a keycode.
278 It's important to remember that all of these keycodes send a left shift - this may cause unintended actions if unaccounted for. The short code is preferred in most situations.
280 |Short Name|Long Name|Description|
281 |----------|---------|-----------|
282 |`KC_TILD`|`KC_TILDE`|tilde `~`|
283 |`KC_EXLM`|`KC_EXCLAIM`|exclamation mark `!`|
284 |`KC_AT`||at sign `@`|
285 |`KC_HASH`||hash sign `#`|
286 |`KC_DLR`|`KC_DOLLAR`|dollar sign `$`|
287 |`KC_PERC`|`KC_PERCENT`|percent sign `%`|
288 |`KC_CIRC`|`KC_CIRCUMFLEX`|circumflex `^`|
289 |`KC_AMPR`|`KC_AMPERSAND`|ampersand `&`|
290 |`KC_ASTR`|`KC_ASTERISK`|asterisk `*`|
291 |`KC_LPRN`|`KC_LEFT_PAREN`|left parenthesis `(`|
292 |`KC_RPRN`|`KC_RIGHT_PAREN`|right parenthesis `)`|
293 |`KC_UNDS`|`KC_UNDERSCORE`|underscore `_`|
294 |`KC_PLUS`||plus sign `+`|
295 |`KC_LCBR`|`KC_LEFT_CURLY_BRACE`|left curly brace `{`|
296 |`KC_RCBR`|`KC_RIGHT_CURLY_BRACE`|right curly brace `}`|
297 |`KC_LT`/`KC_LABK`|`KC_LEFT_ANGLE_BRACKET`|left angle bracket `<`|
298 |`KC_GT`/`KC_RABK`|`KC_RIGHT_ANGLE_BRACKET`|right angle bracket `>`|
299 |`KC_COLN`|`KC_COLON`|colon `:`|
300 |`KC_PIPE`||pipe `\|`|
301 |`KC_QUES`|`KC_QUESTION`|question mark `?`|
302 |`KC_DQT`/`KC_DQUO`|`KC_DOUBLE_QUOTE`|double quote `"`|
306 These are keycodes that can be used to change the current layer.
310 |`LT(layer, kc)`|turn on layer (0-15) when held, kc ([basic keycodes](basic_keycodes.md)) when tapped|
311 |`TO(layer)`|turn on layer when depressed|
312 |`MO(layer)`|momentarily turn on layer when depressed (requires `KC_TRNS` on destination layer)|
313 |`DF(layer)`|sets the base (default) layer|
314 |`TG(layer)`|toggle layer on/off|
315 |`TT(layer)`|tap toggle? idk FIXME|
316 |`OSL(layer)`|switch to layer for one keycode|
320 These keycodes can be used in conjuction with the [Unicode](unicode_and_additional_language_support.md) support.
322 |`UNICODE(n)`/`UC(n)`|if `UNICODE_ENABLE`, this will send characters up to `0x7FFF`|
323 |`X(n)`|if `UNICODEMAP_ENABLE`, also sends unicode via a different method|
325 # `SAFE_RANGE`, or safely defining custom keycodes
327 Sometimes you want to define your own custom keycodes to make your keymap easier to read. QMK provides `SAFE_RANGE` to help you do that. `SAFE_RANGE` is the first available keycode in the `0x0000`-`0xFFFF` range and you can use it when creating your own custom keycode enum:
336 You can then use `process_record_user()` to do something with your keycode:
339 bool process_record_user(uint16_t keycode, keyrecord_t *record) {