MultitouchLogic(InputManager inputManager)
{
if (!MouseHelper.SingleMouseFallback && !MultitouchScreen.AllowNonContactEvents) //modified by Wander
Mouse.OverrideCursor = Cursors.None;
ContactsManager = new ContactsManager(inputManager.Dispatcher);
this.inputManager = inputManager;
this.inputManager.PreProcessInput += inputManager_PreProcessInput;
this.inputManager.PreNotifyInput += inputManager_PreNotifyInput;
this.inputManager.PostProcessInput += inputManager_PostProcessInput;
contactType = typeof(Contact);
Dispatcher.ShutdownFinished += Dispatcher_ShutdownFinished;
Type routedEventType = typeof(RoutedEvent);
contactEvents = typeof(MultitouchScreen).GetFields().Where(m => m.FieldType == routedEventType).Select(f => (RoutedEvent)f.GetValue(null));
}