ShakeTrackingFilter
class ShakeTrackingFilter : public BMessageFilter {
ShakeTrackingFilter(
~ShakeTrackingFilter();
using BPrivate::ShakeTrackingFilter;
ShakeTrackingFilter::ShakeTrackingFilter(BView* targetView, uint32 messageWhat,
ShakeTrackingFilter::~ShakeTrackingFilter()
ShakeTrackingFilter::Filter(BMessage* message, BHandler** /*_target*/)
AddFilter(new ShakeTrackingFilter(this, kMsgShake, 3, 500000));