public interface DragStartHandler
extends com.google.gwt.event.shared.EventHandler
| Modifier and Type | Method and Description | 
|---|---|
| void | onDragStart(DragStartEvent event)Executed when dragging first starts. | 
void onDragStart(DragStartEvent event)
 A drag action is
 considered to be begin when the mouse has moved dragStartDistance with the left mouse down.
event - the event