I was testing custom cursors in an AIR Window this past week and I found some strange behavior. If tried to change the default cursor in an AIR Window by calling :
CursorManager.setBusyCursor()
The cursor in the main WindowedApplication changed rather than the cursor in my AIR Window. So, how could I change just the cursor in my AIR Window. The answer is to use a lower case “cursorManager” on the Window. So, I needed to call:
myAIRWindow.cursorManager.setBusyCursor();
Source from http://butterfliesandbugs.wordpress.com/2008/09/04/how-to-get-a-custom-cursor-in-an-air-window/