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How to detect keypresses on a BasicPage in c# win8 Metro

I want to catch the keypresses regardless of the focus on any control. what event to fire and where. I've tried to override OnKeyDown and OnKeyUp but that doesnt seem to work

There is a tapped event for the UIElements

You can read more here about events http://msdn.microsoft.com/en-us/library/windows/apps/xaml/hh465387.aspx

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