draggingLeaderIndex
The index of the dragging item under the cursor.
Declaration
var draggingLeaderIndex: Int { get set }Discussion
The index is to an element in the array passed as the first parameter to the NSView method beginDraggingSession(with:event:source:).
The default is the NSDraggingItem closest to the location field in the event parameter that was passed to the beginDraggingSession(with:event:source:) method.