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X11R7.4 - man page for xkbaddgeomoverlaykey (x11r4 section 3)

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XkbAddGeomOverlayKey(3) 		  XKB FUNCTIONS 		  XkbAddGeomOverlayKey(3)

NAME
       XkbAddGeomOverlayKey - Add a key to an existing overlay row

SYNOPSIS
       XkbOverlayKeyPtr XkbAddGeomOverlayKey ( overlay, row, under )
	     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 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 dis-
       play  images  of  keyboards  can use geometry properties as hints, but they are not inter-
       preted 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 1.2.1 		  XkbAddGeomOverlayKey(3)
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