titlewindow扩大，缩小

 <?xml version="1.0" encoding="utf-8"?><mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute"><mx:VBox width="400" height="150" x="377" y="28"><mx:TitleWindow id="twWindow" width="308" height="112" maxWidth="308" minWidth="25" styleName="close" showCloseButton="true" close="minFram(event)"></mx:TitleWindow><mx:Style>TitleWindow.close {closeButtonUpSkin:Embed('img/closeNav.png');closeButtonDownSkin:Embed('img/closeNav.png');closeButtonOverSkin:Embed('img/closeNav.png');closeButtonDisabledSkin:Embed('img/closeNav.png');}TitleWindow.open {closeButtonUpSkin:Embed('img/openNav.png');closeButtonDownSkin:Embed('img/openNav.png');closeButtonOverSkin:Embed('img/openNav.png');closeButtonDisabledSkin:Embed('img/openNav.png');}</mx:Style></mx:VBox>/*扩大缩小titlewindow */private function minFram(event:Event):void{var w:int=twWindow.width;if(twWindow.width==twWindow.minWidth){twWindow.styleName="close";twWindow.width=twWindow.maxWidth;}else{twWindow.styleName="open";this.twWindow.width=twWindow.minWidth;}}</mx:Application>