XkbKeyGroupWidth - Computes the width of the type associated with the group grp for the key

xkb    Xkb description of interest

       keycode
              keycode of interest

       grp    group of interest

       The key width and number of groups associated with a key are used to form a small  two-dimensional  array
       of KeySyms for a key. This array may be different sizes for different keys. The array for a single key is
       stored  as a linear list, in row-major order. The arrays for all of the keys are stored in the syms field
       of the client map. There is one row for each group associated with a key and one column for  each  level.
       The index corresponding to a given group and shift level is computed as:

            idx = group_index * key_width + shift_level

       The offset field of the key_sym_map entry for a key is used to access the beginning of the array.

       XkbKeyGroupWidth  computes  the width of the type associated with the group grp for the key corresponding
       to keycode.

X Version 11                                      libX11 1.8.12                              XkbKeyGroupWidth(3)

       XkbKeyGroupWidth  -   Computes  the  width  of  the  type  associated  with  the  group  grp  for the key
       corresponding to keycode

intXkbKeyGroupWidth(XkbDescPtrxkb,KeyCodekeycode,intgrp);