unit Unit1;
       
interface
       
uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics,
                        Controls, Forms, Dialogs;
       
type
  TForm1 = class(TForm)
    procedure FormCreate(Sender: TObject);
    procedure FormDestroy(Sender: TObject);
    procedure FormPaint(Sender: TObject);
    procedure FormMouseDown(Sender: TObject; Button: TMouseButton; Shift:
                        TShiftState; X, Y: Integer);
    procedure FormMouseMove(Sender: TObject; Shift:
                        TShiftState; X, Y: Integer);
  private
    { Private declarations }
    fDragging: boolean;
    fRgn: hRGN;
    fStartX,
    fStartY: integer;
  public
    { Public declarations }
end;
       
var
  Form1: TForm1;
       
implementation
       
{$R *.dfm}
       
procedure TForm1.FormCreate(Sender: TObject);
begin
  fRgn := CreateEllipticRgn (10, 10, 200, 200);
  fDragging := FALSE;
  DoubleBuffered := TRUE;
end;
       
procedure TForm1.FormDestroy(Sender: TObject);
begin
  DeleteObject (fRgn);
end;
       
procedure TForm1.FormPaint(Sender: TObject);
var
  bmp: TBitmap;
begin
  bmp := TBitmap.Create;
  try
    bmp.LoadFromFile ('C:WINDOWS\Голубые кружева 16.bmp');
    Canvas.Brush.Bitmap := bmp;
    PaintRgn (Canvas.Handle, fRgn);
    Canvas.Brush.Color := clBlack;
    FrameRgn (Canvas.Handle, fRgn, Canvas.Brush.Handle, 2, 2);
  finally
    Canvas.Brush.Bitmap := nil;
    bmp.Free;
  end;
end;
       
procedure TForm1.FormMouseDown(Sender: TObject; Button:
                 TMouseButton; Shift: TShiftState; X, Y: Integer);
begin
  if (Button = mbLeft) and (PtInRegion (fRgn, X, Y)) then begin
    fDragging := TRUE;
    fStartX := X;
    fStartY := Y;
  end;
end;
       
procedure TForm1.FormMouseMove(Sender: TObject; Shift:
                 TShiftState; X, Y: Integer);
begin
  if (ssLeft in Shift) and fDragging then begin
    OffsetRgn (fRgn, X - fStartX, Y - fStartY);
    fStartX := X;
    fStartY := Y;
    Refresh;
  end;
end;
       
procedure TForm1.FormMouseUp(Sender: TObject; Button: TMouseButton;
  Shift: TShiftState; X, Y: Integer);
begin
  fDragging := FALSE;
end;
       
end.