从WPF到WinForms的冒泡鼠标事件

I have WPF control hosted inside a WinForms control using ElementHost. The WinForms control has a context menu. I want to show the context menu when user right click on the WPF control. How can this be done? It seems mouse event is not bubbled from WPF to WinForms.I have WPF control hosted inside a WinForms con