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Updated Custom Quantum Functions (markdown)

daktil_manuform
skullydazed 2017-04-04 22:33:12 -07:00
parent b65282f69f
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Custom-Quantum-Functions.md
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@ -49,9 +49,14 @@ This function gets called at every matrix scan, which is basically as often as t
You should use this function if you need custom matrix scanning code. It can also be used for custom status output (such as LED's or a display) or other functionality that you want to trigger regularly even when the user isn't typing.
## `bool process_record_kb(uint16_t keycode, keyrecord_t *record)` and `bool process_record_user(uint16_t keycode, keyrecord_t *record)`
## Hook Into Key Presses
This function gets called every time a key is pressed or released. This is where you should define most custom functionality. The return value is whether or not QMK should continue processing the keycode - returning `false` stops the execution.
* Keyboard/Revision: `bool process_record_kb(uint16_t keycode, keyrecord_t *record)`
* Keymap: `bool process_record_user(uint16_t keycode, keyrecord_t *record)`
This function gets called every time a key is pressed or released. This is particularly useful when defining custom keys or overriding the behavior of existing keys.
The return value is whether or not QMK should continue processing the keycode - returning `false` stops the execution.
The `keycode` variable is whatever is defined in your keymap, eg `MO(1)`, `KC_L`, etc. and can be switch-cased to execute code whenever a particular code is pressed.
@ -72,7 +77,10 @@ keyrecord_t record {
The conditional `if (record->event.pressed)` can tell if the key is being pressed or released, and you can execute code based on that.
## `void led_set_kb(uint8_t usb_led)` and `void led_set_user(uint8_t usb_led)`
## LED Control
* Keyboard/Revision: `void led_set_kb(uint8_t usb_led)`
* Keymap: `void led_set_user(uint8_t usb_led)`
This allows you to control the 5 LED's defined as part of the USB Keyboard spec. It will be called when the state of one of those 5 LEDs changes.
@ -82,7 +90,7 @@ This allows you to control the 5 LED's defined as part of the USB Keyboard spec.
* `USB_LED_COMPOSE`
* `USB_LED_KANA`
This is a typical pattern for lighting LED's to match the `USB_LED_*` state
#### Example:
```
void led_set_kb(uint8_t usb_led) {