XkbLatchGroup - Latches the keysym group

display
              connection to the X server

       device_spec
              device ID, or XkbUseCoreKbd

       group  index of the keysym group to latch

XkbLatchGroup  sends  a request to the server to latch the specified group and does not wait for a reply.
       It returns True if the request was sent and False otherwise.

       Reference the keysym group indices with these symbolic constants:

       Table 1 Symbolic Group Names
       ─────────────────────────────
       Symbolic Name       Value
       ─────────────────────────────
       XkbGroup1Index      0
       XkbGroup2Index      1
       XkbGroup3Index      2
       XkbGroup4Index      3

       XkbLatchGroup -  Latches the keysym group

       True           The XkbLatchGroup function returns True if a request was sent to the server to  latch  the
                      specified group.

       False          The XkbLatchGroup function returns False if the request was not sent.

X Version 11                                      libX11 1.8.12                                 XkbLatchGroup(3)

BoolXkbLatchGroup(Display*display,unsignedintdevice_spec,unsignedintgroup);