I'm writing a VR app in C# and I want the user to walk forward when holding down the right mouse button. Using MouseDown and then polling for which button is pushed doesn't work because it would require the user to continuously push the button. MouseHover doesn't work because it takes a SystemEvent arguement and can't poll for which button is pushed. MouseMove doesn't work because I need this functionality even if the mouse hasn't moved. What's the best way to detect a "held" mouse button? Sorry for the stupid question, but somebody's gotta ask 'em, dammit.