noob quastion about Points

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hey,
lets want make method take point class object (x,y) argument.. cant figure what`s deference between:

1) -(void) getpoint : (point*) apoint;

2) -(void) getpoint : (point) *apoint;

should put * sign? , why?

tnx alot!
 

have tried them both? happened in each case?
 


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