What's a good way to debug content and assign Windows messages?

I am working on an application that simulates a Windows mouse based on a different behavior. One example is that pressing the + or - keys on the keyboard sends a WM_MOUSEWHEEL message to the target window with the appropriate delta. The problem is that in some situations I find it difficult to replicate messages that I think Windows is sending to the target application. Are there ways to record window messages sent to a specific window (hopefully with a filter for which messages I want to catch) and then view that data later?