# hs.keycodes

Convert between key-strings and key-codes. Also provides functionality for querying and changing keyboard layouts.

# API Overview

Constants - Useful values which cannot be changed

map

Functions - API calls offered directly by the extension

currentLayout
currentLayoutIcon
currentMethod
currentSourceID
iconForLayoutOrMethod
inputSourceChanged
layouts
methods
setLayout
setMethod

# API Documentation

# Constants

# map


Signature	`hs.keycodes.map`
Type	Constant
Description	A mapping from string representation of a key to its keycode, and vice versa.
Notes	For example: keycodes[1] == "s", and keycodes["s"] == 1, and so on. This is primarily used by the hs.eventtap and hs.hotkey extensions. Valid strings are any single-character string, or any of the following strings: f1, f2, f3, f4, f5, f6, f7, f8, f9, f10, f11, f12, f13, f14, f15, f16, f17, f18, f19, f20, pad., pad*, pad+, pad/, pad-, pad=, pad0, pad1, pad2, pad3, pad4, pad5, pad6, pad7, pad8, pad9, padclear, padenter, return, tab, space, delete, escape, help, home, pageup, forwarddelete, end, pagedown, left, right, down, up, shift, rightshift, cmd, rightcmd, alt, rightalt, ctrl, rightctrl, capslock, fn
Source	extensions/keycodes/keycodes.lua line 67

# Functions

# currentLayout


Signature	`hs.keycodes.currentLayout() -> string`
Type	Function
Description	Gets the name of the current keyboard layout
Parameters	None
Returns	A string containing the name of the current keyboard layout
Notes	None
Examples	None
Source	extensions/keycodes/libkeycodes.m line 370

# currentLayoutIcon


Signature	`hs.keycodes.currentLayoutIcon() -> hs.image object`
Type	Function
Description	Gets the icon of the current keyboard layout
Parameters	None
Returns	An hs.image object containing the icon, if available
Notes	None
Examples	None
Source	extensions/keycodes/libkeycodes.m line 387

# currentMethod


Signature	`hs.keycodes.currentMethod() -> string`
Type	Function
Description	Get current input method
Parameters	None
Returns	Name of current input method, or nil
Notes	None
Examples	None
Source	extensions/keycodes/libkeycodes.m line 472

# currentSourceID


Signature	`hs.keycodes.currentSourceID([sourceID]) -> string \| boolean`
Type	Function
Description	Get or set the source id for the keyboard input source
Parameters	sourceID - an optional string specifying the input source to set for keyboard input
Returns	If no parameter is provided, returns a string containing the source id for the current keyboard layout or input method; if a parameter is provided, returns true or false specifying whether or not the input source was able to be changed.
Notes	None
Examples	None
Source	extensions/keycodes/libkeycodes.m line 334

# iconForLayoutOrMethod


Signature	`hs.keycodes.iconForLayoutOrMethod(sourceName) -> hs.image object`
Type	Function
Description	Gets an hs.image object for a given keyboard layout or input method
Parameters	sourceName - A string containing the name of an input method or keyboard layout
Returns	An hs.image object, or nil if no image could be found
Notes	Not all layouts/methods have icons, so you should assume this will return nil at some point
Examples	None
Source	extensions/keycodes/libkeycodes.m line 566

# inputSourceChanged


Signature	`hs.keycodes.inputSourceChanged(fn)`
Type	Function
Description	Sets the function to be called when your input source (i.e. qwerty, dvorak, colemac) changes.
Parameters	fn - A function that will be called when the input source changes. No arguments are supplied to the function.
Returns	None
Notes	This may be helpful for rebinding your hotkeys to appropriate keys in the new layout Setting this will un-set functions previously registered by this function.
Examples	None
Source	extensions/keycodes/keycodes.lua line 87

# layouts


Signature	`hs.keycodes.layouts([sourceID]) -> table`
Type	Function
Description	Gets all of the enabled keyboard layouts that the keyboard input source can be switched to
Parameters	sourceID - an optional boolean, default false, indicating whether the keyboard layout names should be returned (false) or their source IDs (true).
Returns	A table containing a list of keyboard layouts enabled in System Preferences
Notes	Only those layouts which can be explicitly switched to will be included in the table. Keyboard layouts which are part of input methods are not included. See `hs.keycodes.methods`.
Examples	None
Source	extensions/keycodes/libkeycodes.m line 404

# methods


Signature	`hs.keycodes.methods([sourceID]) -> table`
Type	Function
Description	Gets all of the enabled input methods that the keyboard input source can be switched to
Parameters	sourceID - an optional boolean, default false, indicating whether the keyboard input method names should be returned (false) or their source IDs (true).
Returns	A table containing a list of input methods enabled in System Preferences
Notes	Keyboard layouts which are not part of an input method are not included in this table. See `hs.keycodes.layouts`.
Examples	None
Source	extensions/keycodes/libkeycodes.m line 438

# setLayout


Signature	`hs.keycodes.setLayout(layoutName) -> boolean`
Type	Function
Description	Changes the system keyboard layout
Parameters	layoutName - A string containing the name of an enabled keyboard layout
Returns	A boolean, true if the layout was successfully changed, otherwise false
Notes	None
Examples	None
Source	extensions/keycodes/libkeycodes.m line 502

# setMethod


Signature	`hs.keycodes.setMethod(methodName) -> boolean`
Type	Function
Description	Changes the system input method
Parameters	methodName - A string containing the name of an enabled input method
Returns	A boolean, true if the method was successfully changed, otherwise false
Notes	None
Examples	None
Source	extensions/keycodes/libkeycodes.m line 534