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XkbFreeClientMap(3)              XKB FUNCTIONS             XkbFreeClientMap(3)



NAME
       XkbFreeClientMap - Free memory used by the client map member of an Xkb-
       DescRec structure

SYNOPSIS
       void XkbFreeClientMap ( xkb, which, free_all )
             XkbDescPtr xkb;
             unsigned int which;
             Bool free_all;

ARGUMENTS
       - xkb  keyboard description containing client map to free

       - which
              mask identifying components of map to free

       - free_all
              True => free all client components and map itself

DESCRIPTION
       XkbFreeClientMap frees the components of client map specified by  which
       in the XkbDescRec structure specified by the xkb parameter and sets the
       corresponding structure component values to NULL. The  which  parameter
       specifies a combination of the client map masks shown in Table 1.

       If  free_all  is  True,  which is ignored; XkbFreeClientMap frees every
       non-NULL  structure  component  in  the  client  map,  frees  the  Xkb-
       ClientMapRec  structure referenced by the map member of the xkb parame-
       ter, and sets the map member to NULL.


       c s l l l lw(4i).  Table 1  XkbAllocClientMap  Masks  _  Mask Effect  _
       XkbKeyTypesMask     T{  The  type_count  field  specifies the number of
       entries to preallocate for the types field of the client  map.  If  the
       type_count field is less than XkbNumRequiredTypes returns BadValue.  T}

       XkbKeySymsMask T{  The  min_key_code and max_key_code fields of the xkb
       parameter are used to allocate the syms and key_sym_map fields  of  the
       client  map.  The fields are allocated to contain the maximum number of
       entries necessary for max_key_code - min_key_code + 1 keys.  T}

       XkbModifierMapMask  T{ The min_key_code and max_key_code fields of  the
       xkb  parameter are used to allocate the modmap field of the client map.
       The field is allocated to contain the maximum number of entries  neces-
       sary for max_key_code - min_key_code + 1 keys.  T}

       NOTE:  The  min_key_code  and  max_key_code fields of the xkb parameter
       must be legal values if the XkbKeySymsMask or XkbModifierMapMask  masks
       are  set  in  the  which  parameter.  If  they are not valid, XkbAlloc-
       ClientMap returns BadValue.

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

       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 2.


       c s s l l l l l l.  Table 2 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)

       The map field of the complete Xkb keyboard description is a pointer  to
       the Xkb client map, which is of type XkbClientMapRec:

          typedef struct {                   /* Client Map */
             unsigned char     size_types;   /* # occupied entries in types */
             unsigned char     num_types;    /* # entries in types */
             XkbKeyTypePtr     types;        /* vector of key types used by this keymap */
             unsigned short    size_syms;    /* length of the syms array */
             unsigned short    num_syms;     /* # entries in syms */
             KeySym *          syms;         /* linear 2d tables of keysyms, 1 per key */
             XkbSymMapPtr      key_sym_map;  /* 1 per keycode, maps keycode to syms */
             unsigned char *   modmap;       /* 1 per keycode, real mods bound to key */
       } XkbClientMapRec, *XkbClientMapPtr;


DIAGNOSTICS
       BadValue       An argument is out of range

SEE ALSO
       XkbAllocClientMap(3)



X Version 11                     libX11 1.1.5              XkbFreeClientMap(3)