debian man page for xkbgetstate

XkbGetState(3)							   XKB FUNCTIONS						    XkbGetState(3)

NAME
       XkbGetState -  Obtains the keyboard state

SYNOPSIS
       Status XkbGetState (Display *display, unsigned int device_spec, XkbStatePtr state_return);

ARGUMENTS
       display
	      connection to the X server

       device_spec
	      device ID, or XkbUseCoreKbd

       state_return
	      backfilled with Xkb state

DESCRIPTION
       The  XkbGetState  function  queries  the server for the current keyboard state, waits for a reply, and then backfills state_return with the
       results.

       All group values are expressed as group indices in the range [0..3]. Modifiers and the compatibility modifier state values are expressed as
       the bitwise union of the core X11 modifier masks. The pointer button state is reported as in the core X11 protocol.

X Version 11							   libX11 1.5.0 						    XkbGetState(3)