DragAndDrop.visualMode

描述

拖动的可视指示。

默认为 DragAndDropVisualMode.Link。

    function OnGUI ()
    {
        var eventType = Event.current.type;
        if (eventType == EventType.DragUpdated || eventType == EventType.DragPerform)
        {
            // Show a copy icon on the drag
            DragAndDrop.visualMode = DragAndDropVisualMode.Copy;

            if (eventType == EventType.DragPerform)
                DragAndDrop.AcceptDrag();

            Event.current.Use();
        }
    }