Mensagem de Informação em Toaster

<?xml version="1.0" encoding="utf-8"?>
<mx:Canvas xmlns:mx="http://www.adobe.com/2006/mxml"
	creationComplete="startUp()">
	<mx:Script>
		<![CDATA[
			import com.datasul.framework.ui.msg.model.UIMessage;
			[Bindable]
			public var _model:SampleMessagesModel = new SampleMessagesModel();
			
			[Bindable]
			public var _controller:SampleMesssagesController;
			
			private function startUp():void {
				_controller = new SampleMesssagesController(this);
			}
			
		]]>
	</mx:Script>
	<mx:VBox horizontalAlign="center" horizontalCenter="0" verticalCenter="0">
		<mx:HBox>
			<mx:Button label="Info" id="btnInfo" 
click="_controller.onMessage(UIMessage.INFO, String(SampleMessagesModel.SHOW_TOASTER) )"/>
		</mx:HBox>
	</mx:VBox>
</mx:Canvas>