SInt32 delta = cEvent.GetParameter<SInt32>(kEventParamMouseWheelDelta, typeSInt32) ;
wxevent.m_wheelRotation = delta;
wxevent.m_wheelDelta = 1;
wxevent.m_linesPerAction = 1;
SInt32 delta = cEvent.GetParameter<SInt32>(kEventParamMouseWheelDelta, typeSInt32) ;
wxevent.m_wheelRotation = delta;
wxevent.m_wheelDelta = 1;
wxevent.m_linesPerAction = 1;