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       XkbAllocGeomShapes - Allocate space for an arbitrary number of geometry


       Status XkbAllocGeomShapes (XkbGeometryPtr geom, int num_needed);


       - geom geometry for which shapes should be allocated

       - num_needed
              number of new shapes 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.

       XkbAllocGeomShapes  allocates  space  for  num_needed  shapes  in   the
       specified geometry geom.  The shapes are not initialized.

       To free geometry shapes, use XkbFreeGeomShapes.


       BadAlloc       Unable to allocate storage

       BadValue       An argument is out of range



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