Hook on an API Call

[Lyric8]

I am trying to set up a hook to monitor a different app and get the parameters of a certain API call when it is made. I am trying to be certain that I don't need to inject a .dll for this. It seems that API monitors can attach to other processes just fine and I have the API down to get threadID, ProcessID and everything like that. I can do hooks to my own application for capturing keyboard events and things like that. I know this topic is brought up all the time and it just never gets finished...the everlasting API monitor

Thanks a lot and these boards are NICE!

PS - I read the post "Log text from WM_SETTEXT messages like Spy++ [Theoretically RESOLVED]" and it seems like that could almost be partially used for this. I am not sure how the message handling and the API calls are related.