dragImageForSelection(with:origin:)
Returns an appropriate drag image for the drag initiated by the specified event.
Declaration
func dragImageForSelection(with event: NSEvent, origin: NSPointPointer?) -> NSImage?Parameters
- event:
The event that initiated the drag session.
- origin:
On return, the lower-left point of the image in view coordinates.
Return Value
An appropriate drag image for the drag initiated by event. May be nil, in which case a default icon will be used.
Discussion
This method is used by dragSelection(with:offset:slideBack:). It can be called by others who need such an image, or can be overridden by subclasses to return a different image.