Canvas Antialias
procedure TForm1.AntiAlias; const ZOOM = 16; var Bmp: TBitmap; StretchMode: Integer; begin Bmp := TBitmap.Create; // create a large bitmap and set coordinate extents accordingly Bmp.SetSize(qrimage1.clientwidth * ZOOM, qrimage1.ClientHeight * ZOOM); SetMapMode(Bmp.Canvas.Handle, MM_ISOTROPIC); SetWindowExtEx(Bmp.Canvas.Handle, 100, 100, nil); SetViewportExtEx(Bmp.Canvas.Handle..