Lock mouse to screen?

[Empirical]

I just recently got the game and I'm running into a camera issue, I run dual-monitors, however I don't intend to use my 2nd one as a tactical map or anything right now. I run the game the game at the 1920x1080 (120) setting as I don't see a full screen setting. When I move my mouse to the left of the screen it pans left as it should, when I move my mouse to the right of the screen it goes off the game and onto my second monitor. I've tried looking the issue up and all I can find is people looking to use the 2nd monitor as a tactical map, I just want my mouse to stay locked to the game so I can actually pan the camera without the arrow keys. I have also tried this in windowed mode and still the same issue.

[Empirical]

Figured it out, I'm just an idiot.

[DukeOfEarl]

It would be great if you said what the solution was. Someone else might run into the same problem.