linux man page for xkblookupkeysym

XkbLookupKeySym(3)                                                 XKB FUNCTIONS                                                XkbLookupKeySym(3)

NAME
       XkbLookupKeySym - Find the symbol associated with a key for a particular state

SYNOPSIS
       Bool XkbLookupKeySym (Display *dpy, KeyCode key, unsigned int state, unsigned int *mods_rtrn, KeySym *sym_rtrn);

ARGUMENTS
       - dpy  connection to X server

       - key  key for which symbols are to be found

       - state
              state for which symbol should be found

       - mods_rtrn
              backfilled with unconsumed modifiers

       - sym_rtrn
              backfilled with symbol associated with key + state

DESCRIPTION
       XkbLookupKeySym  is  the  equivalent of the core XLookupKeySym function. For the core keyboard, given a keycode key and an Xkb state state,
       XkbLookupKeySym returns the symbol associated with the key in sym_rtrn and the list of modifiers that should still be applied in mods_rtrn.
       The state parameter is the state from a KeyPress or KeyRelease event.  XkbLookupKeySym returns True if it succeeds.

SEE ALSO
       XLookupKeySym(3)

X Version 11                                                       libX11 1.5.0                                                 XkbLookupKeySym(3)