Where to add something for before skill begins casting?

[bWolfie 138]

I have a clif->message I want to display in chat when a character begins casting a certain skill:

clif->message(sd->fd, "Starting now!");

I want this to occur before the user starts casting the skill. I.e. order:
1. Player uses skill.
2. Player receives message in chat "Starting now!".
3. Player begins casting skill.

[Sephus 203]

Probably in the clif_parse_UseSkill* functions in clif.c. 

[bWolfie 138]

3 hours ago, Smoke said:

Probably in the clif_parse_UseSkill* functions in clif.c. 

Thanks Smoke. I found what I was looking for thanks to you. Much appreciated.