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diff --git a/docs/quantum_keycodes.md b/docs/quantum_keycodes.md new file mode 100644 index 0000000000..36dbda7a9c --- /dev/null +++ b/docs/quantum_keycodes.md @@ -0,0 +1,353 @@ +# Quantum Keycodes + +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. + +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 + +## QMK keycodes + +|Name|Description| +|----|-----------| +|`RESET`|Put the keyboard into DFU mode for flashing| +|`DEBUG`|Toggles debug mode| +|`KC_GESC`/`GRAVE_ESC`|Acts as escape when pressed normally but when pressed with Shift or GUI will send a `~`| +|`KC_LSPO`|Left shift when held, open paranthesis when tapped| +|`KC_RSPC`|Right shift when held, close paranthesis when tapped| +|`KC_LEAD`|The [leader key](leader_key.md)| +|`FUNC(n)`/`F(n)`|Call `fn_action(n)`| +|`M(n)`|to call macro n| +|`MACROTAP(n)`|to macro-tap n idk FIXME| + +## Bootmagic Keycodes + +Shortcuts for bootmagic options (these work even when bootmagic is off.) + +|Name|Description| +|----|-----------| +|`MAGIC_SWAP_CONTROL_CAPSLOCK`|Swap Capslock and Left Control| +|`MAGIC_CAPSLOCK_TO_CONTROL`|Treat Capslock like a Control Key| +|`MAGIC_SWAP_LALT_LGUI`|Swap the left Alt and GUI keys| +|`MAGIC_SWAP_RALT_RGUI`|Swap the right Alt and GUI keys| +|`MAGIC_NO_GUI`|Disable the GUI key| +|`MAGIC_SWAP_GRAVE_ESC`|Swap the Grave and Esc key.| +|`MAGIC_SWAP_BACKSLASH_BACKSPACE`|Swap backslack and backspace| +|`MAGIC_HOST_NKRO`|Force NKRO on| +|`MAGIC_SWAP_ALT_GUI`/`AG_SWAP`|Swap Alt and Gui on both sides| +|`MAGIC_UNSWAP_CONTROL_CAPSLOCK`|Disable the Control/Capslock swap| +|`MAGIC_UNCAPSLOCK_TO_CONTROL`|Disable treating Capslock like Control | +|`MAGIC_UNSWAP_LALT_LGUI`|Disable Left Alt and GUI switching| +|`MAGIC_UNSWAP_RALT_RGUI`|Disable Right Alt and GUI switching| +|`MAGIC_UNNO_GUI`|Enable the GUI key | +|`MAGIC_UNSWAP_GRAVE_ESC`|Disable the Grave/Esc swap | +|`MAGIC_UNSWAP_BACKSLASH_BACKSPACE`|Disable the backslash/backspace swap| +|`MAGIC_UNHOST_NKRO`|Force NKRO off| +|`MAGIC_UNSWAP_ALT_GUI`/`AG_NORM`|Disable the Alt/GUI switching| +|`MAGIC_TOGGLE_NKRO`|Turn NKRO on or off| + +<!-- FIXME: this formatting needs work + +## Audio + +```c +#ifdef AUDIO_ENABLE + AU_ON, + AU_OFF, + AU_TOG, + + #ifdef FAUXCLICKY_ENABLE + FC_ON, + FC_OFF, + FC_TOG, + #endif + + // Music mode on/off/toggle + MU_ON, + MU_OFF, + MU_TOG, + + // Music voice iterate + MUV_IN, + MUV_DE, +#endif +``` + +### Midi + +#if !MIDI_ENABLE_STRICT || (defined(MIDI_ENABLE) && defined(MIDI_BASIC)) + MI_ON, // send midi notes when music mode is enabled + MI_OFF, // don't send midi notes when music mode is enabled +#endif + +MIDI_TONE_MIN, +MIDI_TONE_MAX + +MI_C = MIDI_TONE_MIN, +MI_Cs, +MI_Db = MI_Cs, +MI_D, +MI_Ds, +MI_Eb = MI_Ds, +MI_E, +MI_F, +MI_Fs, +MI_Gb = MI_Fs, +MI_G, +MI_Gs, +MI_Ab = MI_Gs, +MI_A, +MI_As, +MI_Bb = MI_As, +MI_B, + +MIDI_TONE_KEYCODE_OCTAVES > 1 + +where x = 1-5: +MI_C_x, +MI_Cs_x, +MI_Db_x = MI_Cs_x, +MI_D_x, +MI_Ds_x, +MI_Eb_x = MI_Ds_x, +MI_E_x, +MI_F_x, +MI_Fs_x, +MI_Gb_x = MI_Fs_x, +MI_G_x, +MI_Gs_x, +MI_Ab_x = MI_Gs_x, +MI_A_x, +MI_As_x, +MI_Bb_x = MI_As_x, +MI_B_x, + +MI_OCT_Nx 1-2 +MI_OCT_x 0-7 +MIDI_OCTAVE_MIN = MI_OCT_N2, +MIDI_OCTAVE_MAX = MI_OCT_7, +MI_OCTD, // octave down +MI_OCTU, // octave up + +MI_TRNS_Nx 1-6 +MI_TRNS_x 0-6 +MIDI_TRANSPOSE_MIN = MI_TRNS_N6, +MIDI_TRANSPOSE_MAX = MI_TRNS_6, +MI_TRNSD, // transpose down +MI_TRNSU, // transpose up + +MI_VEL_x 1-10 +MIDI_VELOCITY_MIN = MI_VEL_1, +MIDI_VELOCITY_MAX = MI_VEL_9, +MI_VELD, // velocity down +MI_VELU, // velocity up + +MI_CHx 1-16 +MIDI_CHANNEL_MIN = MI_CH1 +MIDI_CHANNEL_MAX = MI_CH16, +MI_CHD, // previous channel +MI_CHU, // next channel + +MI_ALLOFF, // all notes off + +MI_SUS, // sustain +MI_PORT, // portamento +MI_SOST, // sostenuto +MI_SOFT, // soft pedal +MI_LEG, // legato + +MI_MOD, // modulation +MI_MODSD, // decrease modulation speed +MI_MODSU, // increase modulation speed +#endif // MIDI_ADVANCED + +--> + +## Backlight + +These keycodes control the backlight. Most keyboards use this for single color in-switch lighting. + +|Name|Description| +|----|-----------| +|`BL_x`|Set a specific backlight level between 0-9| +|`BL_ON`|An alias for `BL_9`| +|`BL_OFF`|An alias for `BL_0`| +|`BL_DEC`|Turn the backlight level down by 1| +|`BL_INC`|Turn the backlight level up by 1| +|`BL_TOGG`|Toggle the backlight on or off| +|`BL_STEP`|Step through backlight levels, wrapping around to 0 when you reach the top.| + +## RGBLIGHT WS2818 LEDs + +This controls the `RGBLIGHT` functionality. Most keyboards use WS2812 (and compatible) LEDs for underlight or case lighting. + +|Name|Description| +|----|-----------| +|`RGB_TOG`|toggle on/off| +|`RGB_MOD`|cycle through modes| +|`RGB_HUI`|hue increase| +|`RGB_HUD`|hue decrease| +|`RGB_SAI`|saturation increase| +|`RGB_SAD`|saturation decrease| +|`RGB_VAI`|value increase| +|`RGB_VAD`|value decrease| + +## Thermal Printer (experimental) + +|Name|Description| +|----|-----------| +|`PRINT_ON`|Start printing everything the user types| +|`PRINT_OFF`|Stop printing everything the user types| + +## Keyboard output selection + +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. + +|Name|Description| +|----|-----------| +|`OUT_AUTO`|auto mode| +|`OUT_USB`|usb only| +|`OUT_BT`|bluetooth (when `BLUETOOTH_ENABLE`)| + +## Modifiers + +These are special keycodes that simulate pressing several modifiers at once. + +|Name|Description| +|----|-----------| +|`KC_HYPR`|Hold down LCTL + LSFT + LALT + LGUI| +|`KC_MEH`|Hold down LCTL + LSFT + LALT| + +/* FIXME: Should we have these in QMK too? + * |`KC_LCAG`|`LCTL` + `LALT` + `LGUI`| + * |`KC_ALTG`|`RCTL` + `RALT`| + * |`KC_SCMD`/`KC_SWIN`|`LGUI` + `LSFT`| + * |`KC_LCA`|`LCTL` + `LALT`| + */ + +### Modifiers with keys + +|Name|Description| +|----|-----------| +|`LCTL(kc)`|`LCTL` + `kc`| +|`LSFT(kc)`/`S(kc)`|`LSFT` + `kc`| +|`LALT(kc)`|`LALT` + `kc`| +|`LGUI(kc)`|`LGUI` + `kc`| +|`RCTL(kc)`|`RCTL` + `kc`| +|`RSFT(kc)`|`RSFT` + `kc`| +|`RALT(kc)`|`RALT` + `kc`| +|`RGUI(kc)`|`RGUI` + `kc`| +|`HYPR(kc)`|`LCTL` + `LSFT` + `LALT` + `LGUI` + `kc`| +|`MEH(kc)`|`LCTL` + `LSFT` + `LALT` + `kc`| +|`LCAG(kc)`|`LCTL` + `LALT` + `LGUI` + `kc`| +|`ALTG(kc)`|`RCTL` + `RALT` + `kc`| +|`SCMD(kc)`/`SWIN(kc)`|`LGUI` + `LSFT` + `kc`| +|`LCA(kc)`|`LCTL` + `LALT` + `kc`| + +### One Shot Keys + +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. + +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)`. + +|Name|Description| +|----|-----------| +|`OSM(mod)`|use mod for one keypress| +|`OSL(layer)`|switch to layer for one keypress| + +### Mod-tap keys + +These keycodes will press the mod(s) when held, and the key when tapped. They only work with [basic keycodes](basic_keycodes.md). + +|Name|Description| +|----|-----------| +|`CTL_T(kc)`/`LCTL_T(kc)`|`LCTL` when held, `kc` when tapped| +|`RCTL_T(kc)`|`RCTL` when held, `kc` when tapped| +|`SFT_T(kc)`/`LSFT_T(kc)`|`LSFT` when held, `kc` when tapped| +|`RSFT_T(kc)`|`RSFT` when held, `kc` when tapped| +|`ALT_T(kc)`/`LALT_T(kc)`|`LALT` when held, `kc` when tapped| +|`RALT_T(kc)`/`ALGR_T(kc)`|`RALT` when held, `kc` when tapped| +|`GUI_T(kc)`/`LGUI_T(kc)`|`LGUI` when held, `kc` when tapped| +|`RGUI_T(kc)`|`RGUI` when held, `kc` when tapped| +|`C_S_T(kc)`|`LCTL` + `LSFT` when held, `kc` when tapped| +|`MEH_T(kc)`|`LCTL` + `LSFT` + `LALT` when held, `kc` when tapped| +|`LCAG_T(kc)`|`LCTL` + `LALT` + `LGUI` when held, `kc` when tapped| +|`RCAG_T(kc)`|`RCTL` + `RALT` + `RGUI` when held, `kc` when tapped| +|`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/)| +|`SCMD_T(kc)`/`SWIN_T(kc)`|`LGUI` + `LSFT` when held, `kc` when tapped| +|`LCA_T(kc)`|`LCTL` + `LALT` when held, `kc` when tapped| + +## US ANSI Shifted symbols + +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. + +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. + +|Short Name|Long Name|Description| +|----------|---------|-----------| +|`KC_TILD`|`KC_TILDE`|tilde `~`| +|`KC_EXLM`|`KC_EXCLAIM`|exclamation mark `!`| +|`KC_AT`||at sign `@`| +|`KC_HASH`||hash sign `#`| +|`KC_DLR`|`KC_DOLLAR`|dollar sign `$`| +|`KC_PERC`|`KC_PERCENT`|percent sign `%`| +|`KC_CIRC`|`KC_CIRCUMFLEX`|circumflex `^`| +|`KC_AMPR`|`KC_AMPERSAND`|ampersand `&`| +|`KC_ASTR`|`KC_ASTERISK`|asterisk `*`| +|`KC_LPRN`|`KC_LEFT_PAREN`|left parenthesis `(`| +|`KC_RPRN`|`KC_RIGHT_PAREN`|right parenthesis `)`| +|`KC_UNDS`|`KC_UNDERSCORE`|underscore `_`| +|`KC_PLUS`||plus sign `+`| +|`KC_LCBR`|`KC_LEFT_CURLY_BRACE`|left curly brace `{`| +|`KC_RCBR`|`KC_RIGHT_CURLY_BRACE`|right curly brace `}`| +|`KC_LT`/`KC_LABK`|`KC_LEFT_ANGLE_BRACKET`|left angle bracket `<`| +|`KC_GT`/`KC_RABK`|`KC_RIGHT_ANGLE_BRACKET`|right angle bracket `>`| +|`KC_COLN`|`KC_COLON`|colon `:`| +|`KC_PIPE`||pipe `\|`| +|`KC_QUES`|`KC_QUESTION`|question mark `?`| +|`KC_DQT`/`KC_DQUO`|`KC_DOUBLE_QUOTE`|double quote `"`| + +## Layer Changes + +These are keycodes that can be used to change the current layer. + +|Name|Description| +|----|-----------| +|`LT(layer, kc)`|turn on layer (0-15) when held, kc ([basic keycodes](basic_keycodes.md)) when tapped| +|`TO(layer)`|turn on layer when depressed| +|`MO(layer)`|momentarily turn on layer when depressed (requires `KC_TRNS` on destination layer)| +|`DF(layer)`|sets the base (default) layer| +|`TG(layer)`|toggle layer on/off| +|`TT(layer)`|tap toggle? idk FIXME| +|`OSL(layer)`|switch to layer for one keycode| + +## Unicode + +These keycodes can be used in conjuction with the [Unicode](unicode_and_additional_language_support.md) support. + +|`UNICODE(n)`/`UC(n)`|if `UNICODE_ENABLE`, this will send characters up to `0x7FFF`| +|`X(n)`|if `UNICODEMAP_ENABLE`, also sends unicode via a different method| + +# `SAFE_RANGE`, or safely defining custom keycodes + +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: + +``` +enum my_keycodes { + FOO = SAFE_RANGE, + BAR +}; +``` + +You can then use `process_record_user()` to do something with your keycode: + +``` +bool process_record_user(uint16_t keycode, keyrecord_t *record) { + switch (keycode) { + case FOO: + // Do something here + break; + case BAR: + // Do something here + break; + } +} +``` |