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XkbChangeNames(3)		 XKB FUNCTIONS		     XkbChangeNames(3)

       XkbChangeNames -	_summary-line_

       Bool XkbChangeNames (Display *dpy, unsigned int which, XkbDescPtr Xkb);

       - dpy  connection to the	X server

       - which
	      mask of names or map components to be updated

       - Xkb  keyboard description to be updated

       XkbChangeNames  provides	 a  more flexible method for changing symbolic
       names than XkbSetNames and requires the	use  of	 an  XkbNameChangesRec

       XkbChangeNames  copies any names	specified by changes from the keyboard
       description, xkb, to the	X  server  specified  by  dpy.	XkbChangeNames
       aborts  and returns False if any	illegal	type names or type shift level
       names are specified by changes.

       To change the symbolic names in the server, first modify	a  local  copy
       of  the	keyboard  description  and then	use either XkbSetNames,	or, to
       save network traffic, use a XkbNameChangesRec structure	and  call  Xk-
       bChangeNames  to	 download  the changes to the server.  XkbSetNames and
       XkbChangeNames can generate BadAlloc, BadAtom, BadLength, BadMatch, and
       BadImplementation errors.

       The  XkbNameChangesRec  allows applications to identify small modifica-
       tions to	the symbolic names and effectively reduces the amount of traf-
       fic sent	to the server:

	   typedef struct _XkbNameChanges {
	       unsigned	int   changed;		  /* name components that have changed
	       unsigned	char  first_type;	  /* first key type with a new name */
	       unsigned	char  num_types;	  /* number of types with new names */
	       unsigned	char  first_lvl;	  /* first key type with new level
       names */
	       unsigned	char  num_lvls;		  /* number of key types with new level
       names */
	       unsigned	char  num_aliases;	  /* if	key aliases changed, total
       number of key aliases */
	       unsigned	char  num_rg;		  /* if	radio groups changed, total
       number of radio groups */
	       unsigned	char  first_key;	  /* first key with a new name */
	       unsigned	char  num_keys;		  /* number of keys with new names */
	       unsigned	short changed_vmods;	  /* mask of virtual modifiers for
       which names have	changed	*/
	       unsigned	long  changed_indicators; /* mask of indicators	for which names
       were changed */
	       unsigned	char  changed_groups;	  /* mask of groups for	which names
       were changed */
	   } XkbNameChangesRec,	*XkbNameChangesPtr

       The  changed  field specifies the name components that have changed and
       is the bitwise inclusive	OR of the valid	names mask bits	defined	in Ta-
       ble  1. The rest	of the fields in the structure specify the ranges that
       have changed for	the various kinds of symbolic names, as	shown in Table

       Xkb  provides  several functions	that work with symbolic	names. Each of
       these functions uses a mask to specify individual fields	of the	struc-
       tures  described	 above.	 These	masks  and  their relationships	to the
       fields in a keyboard description	are shown in Table 1.

				 Table 1 Symbolic Names	Masks
       Mask Bit			Value	   Keyboard	Field
       XkbKeycodesNameMask	(1<<0)	   Xkb->names	keycodes
       XkbGeometryNameMask	(1<<1)	   Xkb->names	geometry
       XkbSymbolsNameMask	(1<<2)	   Xkb->names	symbols
       XkbPhysSymbolsNameMask	(1<<3)	   Xkb->names	phys_symbols
       XkbTypesNameMask		(1<<4)	   Xkb->names	type
       XkbCompatNameMask	(1<<5)	   Xkb->names	compat
       XkbKeyTypeNamesMask	(1<<6)	   Xkb->map	type[*].name
       XkbKTLevelNamesMask	(1<<7)	   Xkb->map	type[*].lvl_names[*]
       XkbIndicatorNamesMask	(1<<8)	   Xkb->names	indicators[*]
       XkbKeyNamesMask		(1<<9)	   Xkb->names	keys[*], num_keys
       XkbKeyAliasesMask	(1<<10)	   Xkb->names	key_aliases[*],	num_key_aliases
       XkbVirtualModNamesMask	(1<<11)	   Xkb->names	vmods[*]
       XkbGroupNamesMask	(1<<12)	   Xkb->names	groups[*]
       XkbRGNamesMask		(1<<13)	   Xkb->names	radio_groups[*], num_rg
       XkbComponentNamesMask	(0x3f)	   Xkb->names	keycodes,
							physical symbols,
							types, and
							compatibility map
       XkbAllNamesMask		(0x3fff)   Xkb->names	all name components

				Table 2	XkbNameChanges Fields
       Mask			Fields		     Component	  Field
       XkbKeyTypeNamesMask	first_type,	     Xkb->map	  type[*].name
       XkbKTLevelNamesMask	first_lvl,	     Xkb->map	  type[*].lvl_names[*]
       XkbKeyAliasesMask	num_aliases	     Xkb->names	  key_aliases[*]
       XkbRGNamesMask		num_rg		     Xkb->names	  radio_groups[*]
       XkbKeyNamesMask		first_key,	     Xkb->names	  keys[*]
       XkbVirtualModNamesMask	changed_vmods	     Xkb->names	  vmods[*]
       XkbIndicatorNamesMask	changed_indicators   Xkb->names	  indicators[*]
       XkbGroupNamesMask	changed_groups	     Xkb->names	  groups[*]

       BadAlloc	      Unable to	allocate storage

       BadAtom	      A	name is	neither	a valid	Atom or	None

		      Invalid reply from server

       BadLength      The length of a request is shorter or longer  than  that
		      required to minimally contain the	arguments

       BadMatch	      A	 compatible  version  of  Xkb was not available	in the
		      server or	an argument has	correct	type and range,	but is
		      otherwise	invalid


X Version 11			 libX11	1.7.2		     XkbChangeNames(3)


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