how to get the type of uicontrol event?

AS 3.0 code

mc.addEventListener(MouseEvent.MOUSE_DOWN, eventHandler);

mc.addEventListener(MouseEvent.MOUSE_UP, eventHandler);

mc.addEventListener(MouseEvent.MOUSE_OVER, eventHandler);



function eventHandler(e:MouseEvent):void

{

    if(e.type == MouseEvent.MOUSE_DOWN)

    {

        //do stuff about mouseDownEvent

    }

    else if(e.type == MouseEvent.MOUSE_UP)

    {

        //do stuff about mouseUpEvent

    }

    else if(e.type == MouseEvent.MOUSE_OVER)

    {

        //do stuff about mouseOverEvent

    }

}

cocoa Code

[myButton addTarget:self action:@selector(buttonEvent:withEvent:) forControlEvents:UIControlEventTouchDown];

[myButton addTarget:self action:@selector(buttonEvent:withEvent:) forControlEvents:UIControlEventTouchUpInside];

[myButton addTarget:self action:@selector(buttonEvent:withEvent:) forControlEvents:UIControlEventTouchUpOutside];





- (void)buttonEvent:(UIButton *)sender withEvent:(UIEvent *)event

{

       // how to get a UIControlEvents Type?

}

I want getting the type of UIControl Event... i searching a cocoa documents, but failed.

plz help me ^^