WPF WindowsFormsHost control captures Stylus events before they bubble

Question

I'm working on a WPF 3.5 app and attempting to add multi-touch to a some older Windows Forms content (Flash ocx control). I expected to be able to throw a WindowsFormsHost control on a WPF Window, call CaptureStylus() on the WPF Window and then intercept all Stylus events before they made it down to the WindowsFormsHost. However, any touch points inside the WindowsFormsHost do not produce StylusDown events on the WPF Window as expected - is there any way to trap all the Mouse/Stylus data in the WPF side of things before it gets to the WindowsFormsHost?