XkbUpdateMapFromCore(3) XKB FUNCTIONS XkbUpdateMapFromCore(3)

NAME

XkbUpdateMapFromCore - Update a local Xkb keyboard map to reflect
the mapping expressed by a core format mapping

SYNOPSIS

Bool XkbUpdateMapFromCore (XkbDescPtr xkb, KeyCode first_key, int
num_keys, int map_width, KeySym *core_keysyms, XkbChangesPtr
changes);

ARGUMENTS

xkb keyboard description to update

first_key
keycode of first key description to update

num_keys
number of key descriptions to update

map_width
width of core protocol keymap

core_keysyms
symbols in core protocol keymap

changes
backfilled with changes made to Xkb

DESCRIPTION

Xkb provides several functions that make it easier to apply the
compatibility map to configure a client-side Xkb keyboard mapping,
given a core protocol representation of part or all of a keyboard
mapping. Obtain a core protocol representation of a keyboard mapping
from an actual server (by using XGetKeyboardMapping, for example), a
data file, or some other source.

XkbUpdateMapFromCore interprets input argument information
representing a keyboard map in core format to update the Xkb keyboard
description passed in xkb. Only a portion of the Xkb map is updated
- the portion corresponding to keys with keycodes in the range
first_key through first_key + num_keys - 1. If XkbUpdateMapFromCore
is being called in response to a MappingNotify event, first_key and
num_keys are reported in the MappingNotify event. core_keysyms
contains the keysyms corresponding to the keycode range being
updated, in core keyboard description order. map_width is the number
of keysyms per key in core_keysyms. Thus, the first map_width
entries in core_keysyms are for the key with keycode first_key, the
next map_width entries are for key first_key + 1, and so on.

In addition to modifying the Xkb keyboard mapping in xkb,
XkbUpdateMapFromCore backfills the changes structure whose address is
passed in changes to indicate the modifications that were made. You
may then use changes in subsequent calls such as XkbSetMap, to
propagate the local modifications to a server.

SEE ALSO

XkbSetMap(3)

X Version 11 libX11 1.8.10 XkbUpdateMapFromCore(3)