Good evening, Here is what I'm trying to do : a simple input server filter that blocks caps locks if left shift key isn't held down. So, I have my filter built and installed in my image, I have confirmation it runs, but I run into a problem. The input server device (keyboard) is considering the caps lock as a modifier key and managing it before sending the message. In fact, I never get a message with caps lock keycode into my filter.. Question : would there be a way to get that message one way or another from within a filter? Or would I have to modify the keyboard device code in input server?