Looking for an OS functions monitor tool.

[AmigaMance]

Hi.

 I'm looking for a simple to use tool that monitors a number of user-defined OS functions (Mainly from resident resources like graphics.library for example) and reports to the user of which function was used and by which task/proccess. I need someone that does it in real-time, not something like SaferPatches.
  Any suggestions??

[AmigaMance]

I know about the existence of SnoopDos and i use it everytime a program fails to initiate due to a missing *FILE(s)*, but i don't think that this is what i'm looking for...
 I've had a peek to its guide and it says that it can monitor OS functions, BUT it is limited to the following ones:
FindPort
FindResident
FindSemaphore
FindTask
LockScreen
OpenDevice
OpenFont
OpenLibrary
OpenResource
ReadToolTypes

[AmigaMance]

 I just can't see how Scout and DosTrace can be used for that purpose...

 Snoopy seems to be the right tool for the job, by reading its description. I will give it a try!