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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  (  xkb,  first_key,	num_keys,   map_width,
       core_keysyms, changes )
	     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.
       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	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
       local modifications to a server.

SEE ALSO
       XkbSetMap(3)

X Version 11			  libX11 1.2	       XkbUpdateMapFromCore(3)

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