IDirectManipulationDragDropEventHandler::OnDragDropStatusChange method (directmanipulation.h)

Called when a status change happens in the viewport that the drag-and-drop behavior is attached to.

Syntax

HRESULT OnDragDropStatusChange(
  [in] IDirectManipulationViewport2        *viewport,
  [in] DIRECTMANIPULATION_DRAG_DROP_STATUS current,
  [in] DIRECTMANIPULATION_DRAG_DROP_STATUS previous
);

Parameters

[in] viewport

The updated viewport.

[in] current

The current state of the drag-drop interaction from DIRECTMANIPULATION_DRAG_DROP_STATUS.

[in] previous

The previous state of the drag-drop interaction from DIRECTMANIPULATION_DRAG_DROP_STATUS.

Return value

If this method succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code.

Remarks

If a class is implementing IDirectManipulationViewportEventHandler it should also implement IDirectManipulationDragDropEventHandler if that viewport will use drag and drop. Direct Manipulation will query the IDirectManipulationViewportEventHandler instances to verify that they also implement IDirectManipulationDragDropEventHandler.

Requirements

See also

IDirectManipulationDragDropEventHandler