CentOS 7.0 - man page for xkballocgeomoverlays (centos section 3)

XkbAllocGeomOverlays(3) 		  XKB FUNCTIONS 		  XkbAllocGeomOverlays(3)

NAME
       XkbAllocGeomOverlays - Allocate overlays in a section

SYNOPSIS
       Status XkbAllocGeomOverlays (XkbSectionPtr section, int num_needed);

ARGUMENTS
       - section
	      section for which overlays should be allocated

       - num_needed
	      number of new overlays required

DESCRIPTION
       Xkb provides a number of functions to allocate and free subcomponents of a keyboard geome-
       try. Use these functions to create or modify keyboard geometries. Note  that  these  func-
       tions  merely  allocate	space  for the new element(s), and it is up to you to fill in the
       values explicitly in your code. These allocation functions increase sz_* but  never  touch
       num_* (unless there is an allocation failure, in which case they reset both sz_* and num_*
       to zero). These functions return Success if they succeed, BadAlloc if they are not able to
       allocate space, or BadValue if a parameter is not as expected.

       XkbAllocGeomOverlays  allocates num_needed overlays and adds them to the section.  No ini-
       tialization of the overlays is done.

DIAGNOSTICS
       BadAlloc       Unable to allocate storage

       BadValue       An argument is out of range

X Version 11				   libX11 1.6.0 		  XkbAllocGeomOverlays(3)