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XkbChangeTypesOfKey(3)           XKB FUNCTIONS          XkbChangeTypesOfKey(3)

       XkbChangeTypesOfKey  -  Change the number of groups and the types bound
       to a key

       Status XkbChangeTypesOfKey ( xkb, key, n_groups, groups,  new_types_in,
       p_changes )
             XkbDescPtr xkb;
             int key;
             int n_groups;
             unsigned int groups;
             int * new_types_in;
             XkbMapChangesPtr p_changes;

       - xkb  keyboard description to be changed

       - key  keycode for key of interest

       - n_groups
              new number of groups for key

       - groups
              mask indicating groups to change

       - new_types_in
              indices for new groups specified in groups

       - p_changes
              notes changes made to xkb

       XkbChangeTypesOfKey  reallocates  the  symbols and actions bound to the
       key, if necessary, and initializes any new symbols or actions to NoSym-
       bol  or  NoAction,  as  appropriate.  If the p_changes parameter is not
       NULL, XkbChangeTypesOfKey adds the XkbKeySymsMask to the changes  field
       of  p_changes and modifies the first_key_sym and num_key_syms fields of
       p_changes to include the key that was changed. See STRUCTURE  for  more
       information   on   the   XkbMapChangesPtr   structure.  If  successful,
       XkbChangeTypesOfKey returns Success.

       The n_groups parameter specifies the new number of groups for the  key.
       The  groups  parameter  is  a  mask specifying the groups for which new
       types are supplied and is a  bitwise  inclusive  OR  of  the  following
       masks: XkbGroup1Mask, XkbGroup2Mask, XkbGroup3Mask, and XkbGroup4Mask.

       The  new_types_in  parameter  is  an  integer array of length n_groups.
       Each entry represents the type to use for the associated group  and  is
       an  index  into  xkb->map->types.  The new_types_in array is indexed by
       group index; if n_groups is four and groups  only  has  Group1Mask  and
       Group3Mask set, new_types_in looks like this:

           new_types_in[0] = type for Group1
           new_types_in[1] = ignored
           new_types_in[2] = type for Group3
           new_types_in[3] = ignored

       For convenience, Xkb provides the following constants to use as indices
       to the groups:

       c s l l l l.  Table 1 Group Index Constants _  Constant  Name  Value  _
       XkbGroup1Index 0 XkbGroup2Index 1 XkbGroup3Index 2 XkbGroup4Index 3

       If  the Xkb extension has not been properly initialized, XkbChangeType-
       sOfKey returns BadAccess. If the xkb parameter it not valid  (that  is,
       it  is  NULL or it does not contain a valid client map), XkbChangeType-
       sOfKey returns BadMatch. If the key is not a valid keycode, n_groups is
       greater  than  XkbNumKbdGroups, or the groups mask does not contain any
       of the valid group mask bits, XkbChangeTypesOfKey returns BadValue.  If
       it is necessary to resize the key symbols or key actions arrays and any
       allocation errors occur, XkbChangeTypesOfKey returns BadAlloc.

       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;

       BadAccess      The Xkb extension has not been properly initialized

       BadAlloc       Unable to allocate storage

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

       BadValue       An argument is out of range

X Version 11                     libX11 1.1.5           XkbChangeTypesOfKey(3)