Airblade doesn’t do anything to lock the mouse. It uses the standard movePointer, nothing special. If you doubt it, open your MouseControls.py, comment out this line : “prop.setCursorHidden(True)” and you’ll see how it get repositioned every frame. If you move your mouse very fast, it would jump off the window too. If it’s harder to jump off than in your own application, it may caused by the different framerate, Airblade must be lighter than your application.