XkbTranslateKeySym - Man Page
Find the string and symbol associated with a keysym for a given keyboard state
int XkbTranslateKeySym (Display *dpy, KeySym *sym_inout, unsigned int mods, char *buf, int nbytes, int *extra_rtrn);
connection to X server
symbol to be translated; result of translation
modifiers to apply to sym_inout
buffer into which returned string is written
size of buffer in bytes
number of bytes overflow
XkbTranslateKeySym applies the transformations specified in mods to the symbol specified by sym_inout. It returns in buf the string, if any, associated with the keysym for the current locale. If the transformations in mods changes the keysym, sym_inout is updated accordingly. If the string returned is larger than nbytes, a count of bytes that does not fit into the buffer is returned in extra_rtrn. XkbTranslateKeySym returns the number of bytes it placed into buf.
Returns the string, if any, associated with the keysym for the current locale.