Cursor Lock Keys for Windows

Lock the mouse cursor to one monitor from your Stream Deck. On a dual monitor Windows PC, one key press keeps the mouse on one screen, so it stays on your game or work instead of slipping onto the other display. Press again to free it.

Features

Lock to Monitor: keep the mouse on the screen it is on, or on a screen you choose

Lock to Window: keep the mouse inside the active window, such as a borderless game

Cursor to Monitor: move the pointer to the middle of the next screen

Hold to leave: hold Ctrl, Alt or Shift to let the pointer out for a moment

The lock is set again ten times a second, since Windows drops it when you switch windows

The key shows LOCKED or FREE from what Windows reports

English and Japanese

Safety

The lock ends when the screen layout changes, the PC wakes from sleep, the window closes, the lock keys leave the visible page, or Stream Deck quits

A helper process frees the pointer if the plugin is killed

Requirements and limits

Windows 10+, Stream Deck 6.9+. Tested on Windows 11

Lock to Monitor is for PCs with two or more screens

A game that confines the pointer itself can override the lock; the key then says NOT HELD

It limits the pointer only; camera movement a game reads directly from the mouse (Raw Input) is unchanged

No statement about anti-cheat software

Privacy

Runs on your PC. Nothing is recorded or sent anywhere.

Idea or bug? Use the Support link. Every message is read.

First release with three actions. Lock to Monitor and Lock to Window keep the mouse pointer on one screen or inside the window in front, and Cursor to Monitor moves it to the next screen. English and Japanese.