FMX.ExtCtrls.TDropTarget.DragOver
Delphi
procedure DragOver(const Data: TDragObject; const Point: TPointF; var Operation: TDragOperation); override;
C++
virtual void __fastcall DragOver(const Fmx::Types::TDragObject &Data, const System::Types::TPointF &Point, Fmx::Types::TDragOperation &Operation);
Properties
Type | Visibility | Source | Unit | Parent |
---|---|---|---|---|
procedure function |
protected | FMX.ExtCtrls.pas FMX.ExtCtrls.hpp |
FMX.ExtCtrls | TDropTarget |
Description
OnDragOver event dispatcher.
DragOver inherits from TControl.DragOver. Additionally, DragOver determines whether the drag object is accepted by the TDropTarget control, according to the Filter and FilterIndex properties. If the value determined by the CurrentFilter function matches at least one of the file names of the drag object, DragOver updates the Operation
parameter, assigning it a TDragOperation.Move
value; otherwise the value of Operation
stays as TDragOperation.None
(as set by the caller, DragEnter).