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 | ////////////////////////////////////////////////////////////////////////////////
// All code below is exclusively owned by author of Chess4Net - Pavel Perminov
// (packpaul@mail.ru, packpaul1@gmail.com).
// Any changes, modifications, borrowing and adaptation are a subject for
// explicit permition from the owner.
unit DraggedFigureUnit;
interface
uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, ExtCtrls;
type
  TDraggedFigure = class(TForm)
    Image1: TImage;
    procedure FormCreate(Sender: TObject);
    procedure Image1MouseDown(Sender: TObject; Button: TMouseButton;
      Shift: TShiftState; X, Y: Integer);
  private
    { Private declarations }
  public
    { Public declarations }
  end;
var
  DraggedFigure: TDraggedFigure;
implementation
{$R *.dfm}
procedure TDraggedFigure.FormCreate(Sender: TObject);
begin
  ClientWidth:= 40;
end;
procedure TDraggedFigure.Image1MouseDown(Sender: TObject; Button: TMouseButton;
  Shift: TShiftState; X, Y: Integer);
const SC_DRAGMOVE = $F012;
begin ReleaseCapture;
  Perform(WM_SYSCOMMAND, SC_DRAGMOVE, 0 );
end;
end.
 |