Topic: Obtaining of pointer type of the mouse

All greetings, were necessary to be engaged in development under mac os  for this OS I the beginner in development I ask not to judge strictly for amateurish questions). I need to define what pointer type of the mouse at present time, the pointer of the mouse not only in the field of my window, and on a desktop over any window and over working desktop, I try here so: if ([NSCursor currentSystemCursor] == [NSCursor arrowCursor])... But alas and ah, it turns out nothing, what pointer of the mouse would not be at present time coinciding or not with  the condition does not work, prompt please skilled people how correctly to define mouse pointer type?