I don't understand how an action like "LBUTTON_UP" is used. I've been playing with it for a while, and doesn't a "LBUTTON_DOWN" event have to come first? If that's the case, there would be an unwanted action (LBUTTON_DOWN) occurring before every up action, right?
The wheel actions I totally get, since the wheel scrolls up and down, both of those actions are physically independent of each other.
Someone please explain to me how to have separate BUTTON_UP and BUTTON_DOWN actions which can peacefully co-exist with each other. Thanks in advance for any help!