挂钩到另一个应用程序来观察内存使用情况

I just started writing an application that I would like to use to attach to any running process, and get notified when it allocates or deallocates memory. I already created the interface so I can select from a list of running processes, but I don't really know how to hook into that process to get the information I'm looking for.I just started writing an application that I wo