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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 compat-
       ibility  map  to  configure a client-side Xkb keyboard mapping, given a
       core protocol representation of part or all of a keyboard mapping.  Ob-
       tain  a  core protocol representation of a keyboard mapping from an ac-
       tual 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 corre-
       sponding to the keycode range being updated, in core keyboard  descrip-
       tion   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,  XkbUp-
       dateMapFromCore 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 lo-
       cal modifications to a server.

SEE ALSO
       XkbSetMap(3)

X Version 11                     libX11 1.8.4          XkbUpdateMapFromCore(3)

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