XkbAllocGeomColors - Allocate geometry colors


   Status XkbAllocGeomColors (XkbGeometryPtr geom, int num_needed);


   - geom geometry for which colors should be allocated

   - num_needed
          number of new colors required


   Xkb  provides  a number of functions to allocate and free subcomponents
   of a keyboard  geometry.  Use  these  functions  to  create  or  modify
   keyboard  geometries.   Note that these functions 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.

   XkbAllocGeomColors  allocates space for num_needed colors and adds them
   to the specified geometry  geom.   A  color  name  is  a  string  whose
   interpretation  is  not  specified  by  Xkb.  All  other  geometry data
   structures refer to colors using their indices in this global  list  or
   pointers to colors in this list.


   BadAlloc       Unable to allocate storage

   BadValue       An argument is out of range


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