onRelease...removed !

[Flep]

That's right! onPress,onRelease,onRollOver and onRollOut have been removed.
Now, by now it should be clear, it's the DispatchEvent class to manage everything.
As usual:
you add a listener to the clip the mouse should interact with
you manage the code so that it executes the events within the methods called by the listener

The class I've developed creates a Sprite at runtime and associates the mouse events

Here is the class I've written:

package
{
	import flash.display.MovieClip;
	import flash.display.Sprite;
	import flash.events.*;
	
	public class NoMoreOnPress extends MovieClip
	{
		private var size:Number=100;
		
		public function NoMoreOnPress()
		{
			this.createClip();
		}
		
		public function createClip():void
		{
			var coke:Sprite=new Sprite();
			coke.graphics.beginFill(0xFF6600);
            coke.graphics.drawRect(0,0,this.size,this.size);
            coke.graphics.endFill();
			coke.x=stage.stageWidth/2-coke.width/2;
			coke.y=stage.stageHeight/2-coke.height/2;
            this.addChild(coke);
			this.addCokeListeners(coke);
		}
		
		public function addCokeListeners(coke:Sprite):void
		{
			coke.addEventListener(MouseEvent.MOUSE_OVER,mouseIsOver);
			coke.addEventListener(MouseEvent.MOUSE_OUT,mouseIsOut);
			coke.addEventListener(MouseEvent.MOUSE_DOWN,mouseIsDown);
			coke.addEventListener(MouseEvent.MOUSE_UP,mouseIsUp);
		}
		public function mouseIsOver(event:Event):void
		{
			trace('il mouse mi è sopra');
		}
		public function mouseIsOut(event:Event):void
		{
			trace('il mouse non mi tocca');
		}
		public function mouseIsDown(event:Event):void
		{
			trace('il mouse mi ha cliccato sopra');
		}
		public function mouseIsUp(event:Event):void
		{
			trace('il mouse è stato rilasciato sopra di me');
		}
	}
}

cya!

[cyberluk]

Yes, and what if I have some moving object on the stage and want to detect MouseDown, MouseUp and other events also when the cursor IS NOT pointing the object (because it's moving and mouse is not).

[Flep]

I suggest:

Create a button with Actionscript 3.0

Sprite.hitArea - property of Actionscript 3.0