XkbAddGeomOverlayKey(3)		 XKB FUNCTIONS	       XkbAddGeomOverlayKey(3)

NAME
       XkbAddGeomOverlayKey - Add a key to an existing overlay row

SYNOPSIS
       XkbOverlayKeyPtr XkbAddGeomOverlayKey (XkbOverlayPtr overlay, XkbRowPtr
	      row, 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 ele‐
       ments.

       The top-level geometry description includes a list of geometry  proper‐
       ties.   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, XkbAddGeo‐
       mOverlayKey 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 1.6.2	       XkbAddGeomOverlayKey(3)

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