XkbKeyKeyTypeIndex - Obtain the index of a key type or the pointer to a key type

xkb    Xkb description of interest

       keycode
              keycode of interest

       group  group index

XkbKeyKeyTypeIndex  computes  an  index  into  the  types  vector of the client map in xkb from the given
       keycode and group index.

X Version 11                                      libX11 1.8.12                            XkbKeyKeyTypeIndex(3)

       XkbKeyKeyTypeIndex - Obtain the index of a key type or the pointer to a key type

intXkbKeyKeyTypeIndex(XkbDescPtrxkb,KeyCodekeycode,intgroup);