linux man page for xkbkeycodetokeysym

XkbKeycodeToKeysym(3)                                              XKB FUNCTIONS                                             XkbKeycodeToKeysym(3)

NAME
       XkbKeycodeToKeysym - Finds the keysym bound to a particular key at a specified group and shift level

SYNOPSIS
       KeySym XkbKeycodeToKeysym (Display *dpy, KeyCode kc, unsigned int group, unsigned int level);

ARGUMENTS
       - dpy  connection to X server

       - kc   key of interest

       - group
              group of interest

       - level
              shift level of interest

DESCRIPTION
       XkbKeycodeToKeysym returns the keysym bound to a particular group and shift level for a particular key on the core keyboard. If kc is not a
       legal keycode for the core keyboard, or if group or level are out of range for the specified key, XkbKeycodeToKeysym returns NoSymbol.

X Version 11                                                       libX11 1.5.0                                              XkbKeycodeToKeysym(3)