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X11R7.4 - man page for xkbsetnames (x11r4 section 3)

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XkbSetNames(3)				  XKB FUNCTIONS 			   XkbSetNames(3)

       XkbSetNames - Change the symbolic names in the server

       Bool XkbSetNames ( dpy, which, first_type, num_types , xkb )
	     Display * dpy;
	     unsigned int which;
	     unsigned int first_type;
	     unsigned int num_types;
	     XkbDescPtr xkb;

       - dpy  connection to the X server

       - which
	      mask of names or map components to be changed

       - first_type
	      first type whose name is to be changed

       - num_types
	      number of types for which names are to be changed

       - xkb  keyboard description from which names are to be taken

       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  Xkb-
       NameChangesRecstructure	and  call  XkbChangeNames  to download the changes to the server.
       XkbSetNames and XkbChangeNames can generate BadAlloc, BadAtom,  BadLength,  BadMatch,  and
       BadImplementation errors.

       Use  XkbSetNames to change many names at the same time. For each bit set in which, XkbSet-
       Names takes the corresponding value (or values in the case of arrays)  from  the  keyboard
       description xkb and sends it to the server.

       The first_type and num_types arguments are used only if XkbKeyTypeNamesMask or XkbKTLevel-
       NamesMask is set in which and specify a subset of the types for	which  the  corresponding
       names  are  to  be changed. If either or both of these mask bits are set but the specified
       types are illegal, XkbSetNames returns False and does not update any of the  names  speci-
       fied in which.  The specified types are illegal if xkb does not include a map component or
       if first_type and num_types specify types that are not defined in  the  keyboard  descrip-

       The  XkbNameChangesRec allows applications to identify small modifications to the symbolic
       names and effectively reduces the amount of traffic 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 Table 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 2.

       Xkb provides several functions that work with symbolic names. Each of these functions uses
       a mask to specify individual fields of the structures 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 mini-
		      mally 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 1.2.1 			   XkbSetNames(3)
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