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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 ( dpy, which, xkb )
             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
       information 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

       c  s s s s c s s s s l l l l l l l l l l lw(2i) l l lw(1i) lw(3i).  Ta-
       ble  1  Xkb  Mapping  Component  Masks  and  Convenience  Functions   _
       Mask Value     Map  Fields    Convenience                         Func-
       tions _ T{ XkbKeyTypesMask T}   (1<<0)    client    T{ types
       num_types T}   T{ XkbGetKeyTypes
       XkbCopyKeyTypes T} T{ XkbKeySymsMask T}   (1<<1)    client    T{ syms
       key_sym_map T}   T{ XkbGetKeySyms
       XkbChangeTypesOfKey          T}          T{          XkbModifierMapMask
       T}   (1<<2)    client    modmap    T{ XkbGetKeyModifierMap T} T{ XkbEx-
       plicitComponentsMask   T}   (1<<3)    server    T{   explicit   T}   T{
       XkbGetKeyExplicitComponents        T}        T{       XkbKeyActionsMask
       T}   (1<<4)    server    T{ key_acts
       size_acts T}   T{ XkbGetKeyActions
       XkbResizeKeyActions         T}          T{          XkbKeyBehaviorsMask
       T}   (1<<5)    server    T{  behaviors T}   T{ XkbGetKeyBehaviors T} T{
       XkbVirtualModsMask T}   (1<<6)    server    T{ vmods T}   T{ XkbGetVir-
       tualMods T} T{ XkbVirtualModMapMask T}   (1<<7)    server    T{ vmodmap
       T}   T{ XkbGetVirtualModMap T}

       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

       c  s  s  l  l  l l l l l l l l lw(2i) lw(3i).  Table 2 XkbMapChangesRec
       Masks _      Valid Mask XkbMapChangesRec    XkbDescRec Field Containing
            Fields    Changed           Data           _          XkbKeyTypes-
       Mask     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]          XkbModifierMap-
       Mask  first_modmap_key,   map->modmap[first_modmap_key]              ..
            num_modmap_keys     map->modmap[first_modmap_key                 +
                 num_modmap_keys-1]                     XkbExplicitComponents-
       Mask     first_key_explicit,   server->explicit[first_key_explicit]  ..
            num_key_explicit    server->explicit[first_key_explicit          +
                 num_key_explicit          -         1]         XkbKeyActions-
       Mask   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_behav-
       iors   server->behaviors[first_key_behavior +            num_key_behav-
       iors   -   1]   XkbVirtualModsMask  vmods     server->vmods[*]  XkbVir-
       tualModMapMask     first_vmodmap_key,
       server->vmodmap[first_vmodmap_key]          num_vmodmap_keys         ..
                 server->vmodmap[first_vmodmap_key                           +
       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
       results.  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.

       c s s l l l l l l.  Table 3 Mask Bits for XkbDescRec _ Mask Bit  XkbDe-
       scRec  Field   Value   _   XkbControlsMask     ctrls     (1L<<0)   Xkb-
       ServerMapMask    server    (1L<<1)     XkbIClientMapMask   map  (1L<<2)
       XkbIndicatorMapMask indicators     (1L<<3)                    XkbNames-
       Mask   names     (1L<<4) XkbCompatMapMask    compat    (1L<<5) XkbGeom-
       etryMask     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 1.1.5                     XkbSetMap(3)