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XkbCopyKeyType(3)                XKB FUNCTIONS               XkbCopyKeyType(3)

       XkbCopyKeyType - Copy one XkbKeyTypeRec structures

       Status XkbCopyKeyType ( from, into )
             XkbKeyTypePtr from;
             XkbKeyTypePtr into;

       - from pointer to XkbKeyTypeRec to be copied

       - into pointer to XkbKeyTypeRec to be changed

       XkbCopyKeyType  copies  the  key type specified by from to the key type
       specified by into.  Both must point to legal XkbKeyTypeRec  structures.
       Xkb assumes from and into point to different places. As a result, over-
       laps can be fatal.  XkbCopyKeyType frees any  existing  map,  preserve,
       and  level_names  in  into  prior  to copying. If any allocation errors
       occur while copying from to into, XkbCopyKeyType returns BadAlloc. Oth-
       erwise, XkbCopyKeyType copies from to into and returns Success.

       Key types are used to determine the shift level of a key given the cur-
       rent state of the keyboard. The set of all possible key types  for  the
       Xkb keyboard description are held in the types field of the client map,
       whose total size is stored in size_types, and  whose  total  number  of
       valid  entries is stored in num_types.  Key types are defined using the
       following structure:

       typedef struct {                   /* Key Type */
           XkbModsRec        mods;        /* modifiers used to compute shift level */
           unsigned char     num_levels;  /* total # shift levels, do not modify directly */
           unsigned char     map_count;   /* # entries in map, preserve (if non-NULL) */
           XkbKTMapEntryPtr  map;         /* vector of modifiers for each shift level */
           XkbModsPtr        preserve;    /* mods to preserve for corresponding map entry */
           Atom              name;        /* name of key type */
           Atom *            level_names; /* array of names of each shift level */
       } XkbKeyTypeRec, *XkbKeyTypePtr;

       BadAlloc       Unable to allocate storage

X Version 11                     libX11 1.1.5                XkbCopyKeyType(3)