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XkbAddGeomOverlayKey(3)          XKB FUNCTIONS         XkbAddGeomOverlayKey(3)

NAME
       XkbAddGeomOverlayKey - Add a key to an existing overlay row

SYNOPSIS
       XkbOverlayKeyPtr XkbAddGeomOverlayKey (XkbOverlayPtr overlay, XkbRowPtr
              row, _Xconst char *over, _Xconst char *under);

ARGUMENTS
       overlay
              overlay to be updated

       row    row in overlay to be updated

       under  primary name of the key to be considered

DESCRIPTION
       Xkb provides functions to add a single new element to the top-level
       keyboard geometry. In each case the num_ * fields of the corresponding
       structure is incremented by 1. These functions do not change sz_*
       unless there is no more room in the array. Some of these functions fill
       in the values of the element's structure from the arguments. For other
       functions, you must explicitly write code to fill the structure's
       elements.

       The top-level geometry description includes a list of geometry
       properties.  A geometry property associates an arbitrary string with an
       equally arbitrary name. Programs that display images of keyboards can
       use geometry properties as hints, but they are not interpreted by Xkb.
       No other geometry structures refer to geometry properties.

       XkbAddGeomOverlayKey adds one key to the row in the overlay.  If there
       is no key named under in the row of the underlying section,
       XkbAddGeomOverlayKey returns NULL.

STRUCTURES

           typedef struct _XkbOverlayKey {
               XkbKeyNameRec           over;      /* name of this overlay key */
               XkbKeyNameRec           under;     /* name of the key under this overlay key */
           } XkbOverlayKeyRec,*XkbOverlayKeyPtr;

X Version 11                     libX11 1.8.6          XkbAddGeomOverlayKey(3)