Programmaticaly force screen to light up in blackberry

I want my application according to s开发者_开发知识库ome event, it comes to the background and light up the screen so the user notice that the blackberry has something.

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You can use the Backlight API like this: Backlight.enable(true, timeInMs)

Edit: you can even add a vibration with Alert.startVibrate(timeInMs)