TVirtualDrawTree.DragOperations Property

Read or set which drag operations may be allowed in the tree.

property DragOperations: TDragOperations;

Using this property you can determine, which actions may be performed when a drag operation is finished. The default value includes move, copy and link, where link is rather an esoteric value and only there because it is supported by OLE. The values used directly determine which image is shown for the drag cursor. The specified drag operations do not tell which actions will actually be performed but only, which actions are allowed. They still can be modified during drag'n drop by using a modifier key like the control, shift or alt key or can entirely be ignored by the drop handler.

TVirtualDrawTree Class