public int OnInteraction(IDirectManipulationViewport2 *viewport, DIRECTMANIPULATION_INTERACTION_TYPE interaction)
{
return(((delegate * unmanaged <IDirectManipulationInteractionEventHandler *, IDirectManipulationViewport2 *, DIRECTMANIPULATION_INTERACTION_TYPE, int>)(lpVtbl[3]))((IDirectManipulationInteractionEventHandler *)Unsafe.AsPointer(ref this), viewport, interaction));
}
public int OnDragDropStatusChange(IDirectManipulationViewport2 *viewport, DIRECTMANIPULATION_DRAG_DROP_STATUS current, DIRECTMANIPULATION_DRAG_DROP_STATUS previous)
{
return(((delegate * unmanaged <IDirectManipulationDragDropEventHandler *, IDirectManipulationViewport2 *, DIRECTMANIPULATION_DRAG_DROP_STATUS, DIRECTMANIPULATION_DRAG_DROP_STATUS, int>)(lpVtbl[3]))((IDirectManipulationDragDropEventHandler *)Unsafe.AsPointer(ref this), viewport, current, previous));
}
