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Update Unicode documentation

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Priyadi Iman Nurcahyo 2016-11-27 00:34:29 +07:00
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@ -911,7 +911,33 @@ In `quantum/keymap_extras/`, you'll see various language files - these work the
## Unicode support
You can currently send 4 hex digits with your OS-specific modifier key (RALT for OSX with the "Unicode Hex Input" layout, see [this article](http://www.poynton.com/notes/misc/mac-unicode-hex-input.html) to learn more) - this is currently limited to supporting one OS at a time, and requires a recompile for switching. 8 digit hex codes are being worked on. The keycode function is `UC(n)`, where *n* is a 4 digit hexidecimal. Enable from the Makefile.
There are three Unicode keymap definition method available in QMK:
### UNICODE_ENABLE
Supports Unicode input up to 0xFFFF. The keycode function is `UC(n)` in
keymap file, where *n* is a 4 digit hexadecimal.
### UNICODEMAP_ENABLE
Supports Unicode up to 0xFFFFFFFF. You need to maintain a separate mapping
table `const uint32_t PROGMEM unicode_map[] = {...}` in your keymap file.
The keycode function is `X(n)` where *n* is the array index of the mapping
table.
### UCIS_ENABLE
TBD
Unicode input in QMK works by inputing a sequence of characters to the OS,
sort of like macro. Unfortunately, each OS has different ideas on how Unicode is inputted.
This is the current list of Unicode input method in QMK:
* UC_OSX: MacOS Unicode Hex Input support. Works only up to 0xFFFF. Disabled by default. To enable: go to System Preferences -> Keyboard -> Input Sources, and enable Unicode Hex.
* UC_LNX: Unicode input method under Linux. Works up to 0xFFFFF. Should work almost anywhere on ibus enabled distros. Without ibus, this works under GTK apps, but rarely anywhere else.
* UC_WIN: (not recommended) Windows built-in Unicode input. To enable: create registry key under `HKEY_CURRENT_USER\Control Panel\Input Method\EnableHexNumpad` of type `REG_SZ` called `EnableHexNumpad`, set its value to 1, and reboot. This method is not recommended because of reliability and compatibility issue, use WinCompose method below instead.
* UC_WINC: Windows Unicode input using WinCompose. Requires [WinCompose](https://github.com/samhocevar/wincompose). Works reliably under many (all?) variations of Windows.
## Backlight Breathing