XkbAddGeomProperty - Add one property to an existing keyboard geometry description

geom   geometry to be updated

       name   name of the new property

       value  value for the new property

       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  geometryproperties.   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.

       XkbAddGeomProperty adds one property with the specified name and value to the keyboard geometry specified
       by  geom.XkbAddGeomProperty  returns  NULL  if  any of the parameters is empty or if it was not able to
       allocate space for the property. To allocate space  for  an  arbitrary  number  of  properties,  use  the
       XkbAllocGeomProps function.

       XkbAddGeomProperty - Add one property to an existing keyboard geometry description

XkbAllocGeomProps(3)

X Version 11                                      libX11 1.8.12                            XkbAddGeomProperty(3)

           typedef struct _XkbProperty {
               char *         name;       /* property name */
               char *         value;      /* property value */
           } XkbPropertyRec,*XkbPropertyPtr;

XkbPropertyPtrXkbAddGeomProperty(XkbGeometryPtrgeom,_Xconstchar*name,_Xconstchar*value);