addPossibleOperation() is used to specify the additional operations for the drag-and-drop event.
The method needs a string argument specifying the operation type. The possible argument values are given in the table below:
|
Copy |
Makes drag-and-drop actions copy the source object |
|
Move |
Makes drag-and-drop actions move the source object |
|
NULL |
Makes the program cancel/deny the drag-and-drop action |