C # Suppress mouse click for multiple mice

I wrote an application that currently handles clicks from multiple mouse devices.

I used this project and was modified to handle mouse clicks as shown on the keyboard.

This works great, however now I need to know if there is a way to suppress the click event if it was handled by my application. The app is a quiz game, so the idea is that the quiz master will have (and still use) 1 mouse and the other participants will have their own mouse (like buzzers). So when they buzz, I don't want the operating system (or at least this app) to trigger mouse click events.

The concept is the familiar void WndProc (ref message message) override , and so I tried not to call base.WndProc (ref Message) when I don't know if I want the click events to fire, but that didn't work.

Can anyone point me in the right direction?

Should I go down the windows hook route ? I've looked at this, but I can't figure out how I can connect to each mouse device individually.

Any help would be greatly appreciated.

Edit:

This is a Windows Form UI project, not WPF. Therefore, Microsoft's MultiPoint SDK will not work.