import mx.controls.Alert;
                        import mx.controls.Image;
                        import flash.filesystem.File;
                        import flash.desktop.Clipboard;
                    	import flash.desktop.ClipboardFormats;
                        import flash.events.NativeDragEvent;
                        import flash.desktop.NativeDragManager;
                
                        private function init():void{
                            this.addEventListener(NativeDragEvent.NATIVE_DRAG_ENTER,onDragEnter);
                            this.addEventListener(NativeDragEvent.NATIVE_DRAG_Drop,onDrop);
                            this.addEventListener(NativeDragEvent.NATIVE_DRAG_EXIT,onDragExit);
                        }
                       
                public function onDragEnter(event:NativeDragEvent):void{
                   NativeDragManager.acceptDragDrop(this);
                }

                public function onDrop(event:NativeDragEvent):void{
                    var dropfiles:Array = event.clipboard.getData(ClipboardFormats.FILE_LIST_FORMAT) as Array;
                                for each (var file:File in dropfiles){
                                    switch (file.extension){   
                                case "png" :
                                        addImage(file.nativePath);
                                        break;
                                case "jpg" :
                                        addImage(file.nativePath);
                                        break;
                                case "gif" :
                                        addImage(file.nativePath);
                                        break;
                                default:
                                   Alert.show("Unmapped Extension");
                            }
                      }   
                }
              
                public function onDragExit(event:NativeDragEvent):void{
                    trace("Drag exit event.");
                }
                
                private function addImage(nativePath:String):void{
                        var img:Image = new Image();
                        if(Capabilities.os.search("Mac") >= 0){
                        	img.source = "file://" + nativePath;
                        } else {
                        	img.source = nativePath;
                        }
                        this.addChild(img);
                }