Glossary:Mouse locking

Certain games do not lock the mouse inside the actual window, this can result in some rather annoying behaviour on multiple screens or while playing in window mode.

Mouse locking refers to constraining the mouse cursor within the window of a game. This is to prevent accidental clicks while the cursor is outside of the game window, causing it to lose focus or possibly even worse. Most games automatically lock the cursor, but for some titles this must be forced through a third-party alternative.

Windows

Cursor Lock

Cursor Lock^{[citation needed]}
Download and open Cursor Lock. Select "Program Mode" on the first tab. Set the game's .exe in the "Open Program" field. Click "Create Shortcut", and run the game using this shortcut.

Special K

See Special K > Mouse locking for instructions.

Clip Cursor

Allows locking the cursor to any running applications.

Program doesn't see windows that were opened subsequently.

Borderless Gaming

Global hotkey (Scroll lock) for locking the cursor.

Lacks automatic cursor lock during game focus.

MouseJail

Use MouseJail

Download MouseJail from here

Insert at the start of your "Target" field : "MouseJail.exe" ( for example : "<path-to-game>\gta3.exe" => "MouseJail.exe <path-to-game>\gta3.exe").

On Steam set launch options to MouseJail.exe %command%

Dual Monitor Tools

Use Swap Screen from Dual Monitor Tools

Download Dual Monitor Tools from here, extract to any folder.

Launch "SwapScreen.exe"

Recommended configuration:

Under the cursor tab, set the hotkeys for "Cursor free to move between screens", and "Lock Cursor onto screen".
Uncheck "Allow cursor to move freely if the left Control key is pressed".

References