设置IsManipulationEnabled时，WPF控件不捕获按住事件（右键单击）

I'm starting to make some tests with a touch screen and I've found that if a UIControl has the "IsManipulationEnabled" attribute set to true then the MouseRightClick Events fired by the press and hold gesture (WIN7) is not captured. Am I doing something wrong?I'm starting to make some tests with a touch sc