* Add a key to the key sequence and look it up in the curmap
* if the latter is defined.
* @param mod modifier mask
+ * @param nmod which modifiers to mask out for equality test
* @return the action matching this key sequence or LFUN_UNKNOWN_ACTION
*/
- kb_action addkey(unsigned int key, unsigned int mod);
+ kb_action addkey(unsigned int key, unsigned int mod, unsigned int nmod = 0);
/**
* Add a sequence of keys from a string to the sequence