XkbGetKeyboard - Retrieves one or more components of a keyboard device description

display
              connection to the X server

       device_spec
              device ID, or XkbUseCoreKbd

       bits_to_change
              determines events to be selected / deselected

       values_for_bits
              1=>select, 0->deselect; for events in bits_to_change

XkbGetKeyboard allocates and returns a pointer to a keyboard description. It queries the server for those
       components  specified  in  the  which  parameter  for  device  device_spec  and copies the results to the
       XkbDescRec it allocated. The remaining fields in the keyboard description are  set  to  NULL.  The  valid
       masks for which are those listed in Table 1.

               Table 1 Mask Bits for XkbDescRec
       ──────────────────────────────────────────────────
       Mask Bit               XkbDescRec Field   Value
       ──────────────────────────────────────────────────
       XkbControlsMask        ctrls              (1L<<0)
       XkbServerMapMask       server             (1L<<1)
       XkbIClientMapMask      map                (1L<<2)
       XkbIndicatorMapMask    indicators         (1L<<3)
       XkbNamesMask           names              (1L<<4)
       XkbCompatMapMask       compat             (1L<<5)
       XkbGeometryMask        geom               (1L<<6)
       XkbAllComponentsMask   All Fields         (1L<<7)

       XkbGetKeyboard  is  used to read the current description for one or more components of a keyboard device.
       It calls XkbGetKeyboardByName(3) as follows:

       XkbGetKeyboardByName(dpy,device_spec, NULL, which,which, False).

       If successful, XkbGetKeyboard returns a pointer to a  newly  allocated  XkbDescRec  structure,  which  is
       described   in   XkbGetKeyboardByName(3),   and  which  should  be  freed  with  XkbFreeKeyboard(3).   If
       XkbGetKeyboard does not succeed, it returns NULL.

       BadAlloc       Unable to allocate storage

       XkbGetKeyboard -   Retrieves one or more components of a keyboard device description

XkbGetKeyboardByName(3)

X Version 11                                      libX11 1.8.12                                XkbGetKeyboard(3)

XkbDescPtrXkbGetKeyboard(Display*display,unsignedintwhich,unsignedintdevice_spec);