title: Cursor Control in Cocoa App
body: <p>I have seen applications which allow one to change cursor on Mac.</p>
  
  <p>The Changed cursor is applicable on all apps, something like System Cursor.</p>
  
  <p>Is there an API or something that can allow me to change system cursor, probably with a <code>.cur</code> file?</p>
  
  <p>I need a way by which user can assign a different cursor and not the cursor which is applicable to my own application.</p>