Well that's what I thought, but when I change this: event.target.startDrag();
to this: event.target.startDrag(false, 10, 0, myCanvas.width, myCanvas.height); I get the following error: ArgumentError: Error #1063: Argument count mismatch on flash.display::Sprite/startDrag(). Expected 0, got 5. --- In flexcoders@yahoogroups.com, "iilsley" <[EMAIL PROTECTED]> wrote: > > startDrag allows you to specify 'bounds' .. > > > --------- > startDrag(lockCenter:Boolean = false, bounds:Rectangle = null):void > > > Parameters > lockCenter:Boolean (default = false) Specifies whether the > draggable sprite is locked to the center of the mouse position (true), > or locked to the point where the user first clicked the sprite (false). > > bounds:Rectangle (default = null) Value relative to the coordinates > of the Sprite's parent that specify a constraint rectangle for the Sprite. > ---------- > > --- In flexcoders@yahoogroups.com, "jmfillman" <jmfillman@> wrote: > > > > How do I set a boundary that draggable objects must stay within? Take > > the example below, if you click and drag the button to the left, you > > can drag it so it's x value is negative. Further, I want to constrain > > the mouse movements to the visible portion of the canvas, while the > > button is being dragged. I've played around with setting the button's > > x value to 0 if it ever goes below 0, but as you continue to move the > > button to the left away from the canvas, that stops working once the > > mouse pointer is not over the button, and then you have a floating > > button that you cannot drop. Please help! > > > > <?xml version="1.0"?> > > <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"; > > backgroundColor="white" initialize="initApp();"> > > <mx:Script> > > <![CDATA[ > > import mx.core.DragSource; > > import mx.managers.DragManager; > > import mx.controls.Button; > > > > private function initApp():void{ > > var myButton:Button = new Button; > > myButton.width = 100; > > myButton.height = 50; > > myButton.y = 150; > > myButton.label = "Test Button"; > > myButton.addEventListener(MouseEvent.MOUSE_MOVE, > > doDrag, false, 0, true); > > myButton.addEventListener(MouseEvent.MOUSE_UP, > > endDrag, false, 0, true); > > myCanvas.addChild(myButton); > > } > > private function doDrag(event:MouseEvent):void { > > if (event.currentTarget is Button && > > event.buttonDown == true) { > > var dragTarget:Button = > > event.currentTarget as Button; > > dragTarget.setFocus(); > > event.target.startDrag(); > > } > > } > > private function endDrag(event:MouseEvent):void { > > event.target.stopDrag(); > > } > > ]]> > > </mx:Script> > > <mx:Canvas id="myCanvas" width="200" height="300" > > backgroundColor="#FFFFFF" borderStyle="solid" > > verticalScrollPolicy="on" horizontalScrollPolicy="off"> > > <mx:HRule x="0" y="700"/> > > </mx:Canvas> > > </mx:Application> > > >
