Removed in LÖVE 0.9.0  
 It has been renamed to love.mouse.setGrabbed. 
Grabs the mouse and confines it to the window.
love.mouse.setGrab( grab )
boolean grabNothing.
Toggles whether the mouse is grabbed by pressing tab, with the help of love.mouse.isGrabbed.
function love.keypressed(key)
   if key == "tab" then
      local state = not love.mouse.isGrabbed()   -- the opposite of whatever it currently is
      love.mouse.setGrab(state)
   end
end 
 
    © 2006–2016 LÖVE Development Team
Licensed under the GNU Free Documentation License, Version 1.3.
    https://love2d.org/wiki/love.mouse.setGrab