kmk_firmware/docs/modtap.md
2022-02-13 14:47:02 -08:00

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# ModTap Keycodes
Enabling ModTap will give you access to the following keycodes and can simply be
added to the modules list.
```python
from kmk.modules.modtap import ModTap
modtap = ModTap()
# optional: set a custom tap timeout in ms
# modtap.tap_time = 300
keyboard.modules.append(modtap)
```
## Keycodes
|New Keycode | Description |
|-------------------------------------------------------|-----------------------------------------------------------------|
|LCTL = KC.MT(KC.SOMETHING, KC.LCTRL) |`LCTRL` if held `kc` if tapped |
|LSFT = KC.MT(KC.SOMETHING, KC.LSFT) |`LSHIFT` if held `kc` if tapped |
|LALT = KC.MT(KC.SOMETHING, KC.LALT) |`LALT` if held `kc` if tapped |
|LGUI = KC.MT(KC.SOMETHING, KC.LGUI) |`LGUI` if held `kc` if tapped |
|RCTL = KC.MT(KC.SOMETHING, KC.RCTRL) |`RCTRL` if held `kc` if tapped |
|RSFT = KC.MT(KC.SOMETHING, KC.RSFT) |`RSHIFT` if held `kc` if tapped |
|RALT = KC.MT(KC.SOMETHING, KC.RALT) |`RALT` if held `kc` if tapped |
|RGUI = KC.MT(KC.SOMETHING, KC.RGUI) |`RGUI` if held `kc` if tapped |
|SGUI = KC.MT(KC.SOMETHING, KC.LSHFT(KC.LGUI)) |`LSHIFT` and `LGUI` if held `kc` if tapped |
|LCA = KC.MT(KC.SOMETHING, KC.LCTRL(KC.LALT)) |`LCTRL` and `LALT` if held `kc` if tapped |
|LCAG = KC.MT(KC.SOMETHING, KC.LCTRL(KC.LALT(KC.LGUI))) |`LCTRL` and `LALT` and `LGUI` if held `kc` if tapped |
|MEH = KC.MT(KC.SOMETHING, KC.LCTRL(KC.LSFT(KC.LALT))) |`CTRL` and `LSHIFT` and `LALT` if held `kc` if tapped |
|HYPR = KC.MT(KC.SOMETHING, KC.HYPR) |`LCTRL` and `LSHIFT` and `LALT` and `LGUI` if held `kc` if tapped|
## Custom HoldTap Behavior
The full ModTap signature is as follows:
```python
KC.MT(KC.TAP, KC.HOLD, prefer_hold=True, tap_interrupted=False, tap_time=None)
```
* `prefer_hold`: decides which keycode the ModTap key resolves to when another
key is pressed before the timeout finishes. When `True` the hold keycode is
choosen, the tap keycode when `False`.
* `tap_interrupted`: decides if the timeout will interrupt at the first other
key press/down, or after the first other key up/release. Set to `True` for
interrupt on release.
* `tap_time`: length of the tap timeout in milliseconds.
Each of these parameters can be set for every ModTap key individually.