Module's of Running Processes show all the related API's

Question

I want to create a system similar to Api Monitoring. I showed all the running processes, modules and threads of the running processes to the user.The user would be enable to select the running process and the monitoring of that process is started which shows the list of all the API's related to the modules of running processes. Now' i am stuck on a point that how i will show the list of API's that is being used in the running process. Can anybody tell me the right way to do this.

 

Any link to related web page will be appreciated. Thanks in advance.

 

This is the picture of API Monitoring system.In this way i want to show the list of related API's to the user.