Provide a ghosted drag image for use during drags where
DragSource.isDragImageSupported returns false.
Its location in screen coordinates may be changed via
GhostedDragImage.move .
When the image is no longer needed, invoke
GhostedDragImage.dispose , which
hides the graphic immediately, or
GhostedDragImage.returnToOrigin , which
moves the image to its original location and then disposes it. |