Add unicode mode change callbacks (#18235)

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Joshua Diamond 2022-08-31 19:39:16 -04:00 committed by GitHub
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@ -206,6 +206,17 @@ The functions for starting and finishing Unicode input on your platform can be o
You can find the default implementations of these functions in [`process_unicode_common.c`](https://github.com/qmk/qmk_firmware/blob/master/quantum/process_keycode/process_unicode_common.c).
### Input Mode Callbacks
There are callbacks functions available that are called whenever the unicode input mode changes. The new input mode is passed to the function.
|Callback |Description |
|---------------------------------------------------|-----------------------------------------------------|
| `unicode_input_mode_set_kb(uint8_t input_mode)` | Callback for unicode input mode set, for keyboard. |
| `unicode_input_mode_set_user(uint8_t input_mode)` | Callback for unicode input mode set, for users. |
This feature can be used, for instance, to implement LED indicators for the current unicode input mode.
### Input Key Configuration
You can customize the keys used to trigger Unicode input for macOS, Linux and WinCompose by adding corresponding defines to your `config.h`. The default values match the platforms' default settings, so you shouldn't need to change this unless Unicode input isn't working, or you want to use a different key (e.g. in order to free up left or right Alt).