User BeginDrag event, which is used in TJamShellTree and TJamShellList.
TOnBeforeShellDragEvent = procedure (sender: TObject; var DraggedFiles: IDataObject) of object;
Parameters |
Description |
sender |
The sender of the event |
DraggedFiles |
The elements that are dragged as IDataObject. If set to nil the Drag-Operation is cancelled. |