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XkbSetMap(3)			 XKB FUNCTIONS			  XkbSetMap(3)

       XkbSetMap  - Send a complete new	set of values for entire components to
       the server.

       Bool XkbSetMap (Display *dpy, unsigned int which, XkbDescPtr xkb);

       - dpy  connection to X server

       - which
	      mask selecting subcomponents to update

       - xkb  description from which new values	are taken

       There are two ways to make changes to map components: either  change  a
       local  copy of the keyboard map and call	XkbSetMap to send the modified
       map to the server, or, to reduce	network	traffic, use an	XkbMapChanges-
       Rec structure and call XkbChangeMap.

       Use  XkbSetMap  to  send	a complete new set of values for entire	compo-
       nents (for example, all symbols,	all actions, and so on)	to the server.
       The  which parameter specifies the components to	be sent	to the server,
       and is a	bitwise	inclusive OR of	the masks listed in Table 1.  The  xkb
       parameter  is a pointer to an XkbDescRec	structure and contains the in-
       formation to be copied to the server.  For each bit set	in  the	 which
       parameter,  XkbSetMap takes the corresponding structure values from the
       xkb parameter and sends it to the server	specified by dpy.

       If any components specified by which are	not present in the xkb parame-
       ter, XkbSetMap returns False. Otherwise,	it sends the update request to
       the  server  and	 returns  True.	  XkbSetMap  can  generate   BadAlloc,
       BadLength, and BadValue protocol	errors.

       Key  types,  symbol  maps, and actions are all interrelated; changes in
       one require changes in the others. Xkb provides functions  to  make  it
       easier to edit these components and handle the interdependencies. Table
       1 lists these helper functions and provides a pointer to	where they are

				Table 1	Xkb Mapping Component Masks
				     and Convenience Functions
       Mask		      Value    Map	Fields	      Convenience
       XkbKeyTypesMask	      (1<<0)   client	types	      XkbGetKeyTypes
						size_types    XkbResizeKeyType
						num_types     XkbCopyKeyType
       XkbKeySymsMask	      (1<<1)   client	syms	      XkbGetKeySyms
						size_syms     XkbResizeKeySyms
						num_syms      XkbChangeTypesOfKey
       XkbModifierMapMask     (1<<2)   client	modmap	      XkbGetKeyModifierMap
       XkbExplicitCompo-      (1<<3)   server	explicit      XkbGetKeyExplicitComponents

       XkbKeyActionsMask      (1<<4)   server	key_acts      XkbGetKeyActions
						acts	      XkbResizeKeyActions
       XkbKeyBehaviorsMask    (1<<5)   server	behaviors     XkbGetKeyBehaviors
       XkbVirtualModsMask     (1<<6)   server	vmods	      XkbGetVirtualMods
       XkbVirtualModMapMask   (1<<7)   server	vmodmap	      XkbGetVirtualModMap

       The changed field identifies the	map components that have changed in an
       XkbDescRec structure and	may contain any	of the bits in Table 1,	 which
       are also	shown in Table 2. Every	1 bit in changed also identifies which
       other fields in the XkbMapChangesRec structure contain valid values, as
       indicated  in Table 2. The min_key_code and max_key_code	fields are for
       reference only; they are	ignored	on any requests	sent to	the server and
       are  always  updated  by	the server whenever it returns the data	for an

					    Table 2 XkbMapChangesRec Masks
       Mask					  XkbMapChangesRec	 XkbDescRec Field Containing
						  Fields		 Changed Data
       XkbKeyTypesMask				  first_type,		 map->type[first_type] ..
						  num_types		 map->type[first_type +	num_types - 1]

       XkbKeySymsMask				  first_key_sym,	 map->key_sym_map[first_key_sym] ..
						  num_key_syms		 map->key_sym_map[first_key_sym	+
									 num_key_syms -	1]
       XkbModifierMapMask			  first_modmap_key,	 map->modmap[first_modmap_key] ..
						  num_modmap_keys	 map->modmap[first_modmap_key +

       XkbExplicitComponentsMask		  first_key_explicit,
       server->explicit[first_key_explicit] ..
						  num_key_explicit	 server->explicit[first_key_explicit +
									 num_key_explicit - 1]
       XkbKeyActionsMask			  first_key_act,	 server->key_acts[first_key_act] ..
						  num_key_acts		 server->key_acts[first_key_act	+
									 num_key_acts -	1]
       XkbKeyBehaviorsMask			  first_key_behavior,
       server->behaviors[first_key_behavior] ..
						  num_key_behaviors	 server->behaviors[first_key_behavior +
									 num_key_behaviors - 1]
       XkbVirtualModsMask			  vmods			 server->vmods[*]
       XkbVirtualModMapMask			  first_vmodmap_key,

						  num_vmodmap_keys	  ..
									 + num_vmodmap_keys - 1]

       True	      The XkbSetMap function returns True all components spec-
		      ified by which are present in the	xkb parameter.

       False	      The  XkbSetMap  function	returns	False if any component
		      specified	by which is not	present	in the xkb parameter.

       Use the XkbMapChangesRec	structure to identify and track	partial	 modi-
       fications to the	mapping	components and to reduce the amount of traffic
       between the server and clients.

       typedef struct _XkbMapChanges {
	   unsigned short   changed;		/* identifies valid components in structure */
	   KeyCode	    min_key_code;	/* lowest numbered keycode for device */
	   KeyCode	    max_key_code;	/* highest numbered keycode for	device */
	   unsigned char    first_type;		/* index of first key type modified */
	   unsigned char    num_types;		/* # types modified */
	   KeyCode	    first_key_sym;	/* first key whose key_sym_map changed */
	   unsigned char    num_key_syms;	/* # key_sym_map entries changed */
	   KeyCode	    first_key_act;	/* first key whose key_acts entry changed */
	   unsigned char    num_key_acts;	/* # key_acts entries changed */
	   KeyCode	    first_key_behavior;	/* first key whose behaviors changed */
	   unsigned char    num_key_behaviors;	/* # behaviors entries changed */
	   KeyCode	    first_key_explicit;	/* first key whose explicit entry changed */
	   unsigned char    num_key_explicit;	/* # explicit entries changed */
	   KeyCode	    first_modmap_key;	/* first key whose modmap entry	changed	*/
	   unsigned char    num_modmap_keys;	/* # modmap entries changed */
	   KeyCode	    first_vmodmap_key;	/* first key whose vmodmap changed */
	   unsigned char    num_vmodmap_keys;	/* # vmodmap entries changed */
	   unsigned char    pad1;		/* reserved */
	   unsigned short   vmods;		/* mask	indicating which vmods changed */
       } XkbMapChangesRec,*XkbMapChangesPtr;

       The complete description	of an Xkb keyboard is given by an  XkbDescRec.
       The component structures	in the XkbDescRec represent the	major Xkb com-

       typedef struct {
	  struct _XDisplay * display;	   /* connection to X server */
	  unsigned short     flags;	   /* private to Xkb, do not modify */
	  unsigned short     device_spec;  /* device of	interest */
	  KeyCode	     min_key_code; /* minimum keycode for device */
	  KeyCode	     max_key_code; /* maximum keycode for device */
	  XkbControlsPtr     ctrls;	   /* controls */
	  XkbServerMapPtr    server;	   /* server keymap */
	  XkbClientMapPtr    map;	   /* client keymap */
	  XkbIndicatorPtr    indicators;   /* indicator	map */
	  XkbNamesPtr	     names;	   /* names for	all components */
	  XkbCompatMapPtr    compat;	   /* compatibility map	*/
	  XkbGeometryPtr     geom;	   /* physical geometry	of keyboard */
       } XkbDescRec, *XkbDescPtr;

       The display field points	to an X	display	structure. The flags field  is
       private	to  the	 library:  modifying flags may yield unpredictable re-
       sults. The device_spec field specifies the  device  identifier  of  the
       keyboard	 input device, or XkbUseCoreKeyboard, which specifies the core
       keyboard	device.	The min_key_code and max_key_code fields  specify  the
       least and greatest keycode that can be returned by the keyboard.

       Each  structure	component has a	corresponding mask bit that is used in
       function	calls to indicate that the structure should be manipulated  in
       some manner, such as allocating it or freeing it. These masks and their
       relationships to	the fields in the XkbDescRec are shown in Table	3.

	       Table 3 Mask Bits for XkbDescRec

       Mask Bit		      XkbDescRec Field	 Value
       XkbControlsMask	      ctrls		 (1L<<0)
       XkbServerMapMask	      server		 (1L<<1)

       XkbIClientMapMask      map		 (1L<<2)
       XkbIndicatorMapMask    indicators	 (1L<<3)
       XkbNamesMask	      names		 (1L<<4)
       XkbCompatMapMask	      compat		 (1L<<5)

       XkbGeometryMask	      geom		 (1L<<6)
       XkbAllComponentsMask   All Fields	 (0x7f)

       BadAlloc	      Unable to	allocate storage

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

       BadValue	      An argument is out of range

       XkbChangeMap(3),	XkbChangeTypesOfKey(3),	XkbCopyKeyType(3), XkbCopyKey-
       Types(3), XkbGetKeyActions(3), XkbGetKeyBehaviors(3),  XkbGetKeyExplic-
       itComponents(3),	 XkbGetKeyModifierMap(3), XkbGetKeySyms(3), XkbGetKey-
       Types(3),  XkbResizeKeyActions(3),  XkbResizeKeySyms(3),	 XkbResizeKey-
       Type(3),	XkbGetVirtualModMap(3),	XkbGetVirtualMods(3)

X Version 11			 libX11	1.6.12			  XkbSetMap(3)


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