uframerect.pas

来自「Delphi Win32核心API参考光盘源码 本书包含了常用的Windows」· PAS 代码 · 共 43 行

unit UFrameRect;

interface

uses
  Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
  StdCtrls;

type
  TForm1 = class(TForm)
    Button1: TButton;
    procedure Button1Click(Sender: TObject);
  private

    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.DFM}

procedure TForm1.Button1Click(Sender: TObject);
var
  TheRect: Trect;     // the rectangular coordinates
begin
  {define the rectangle}
  TheRect := Rect(10, 10, 110, 110);

  {initialize the brush}
  Canvas.Brush.Color := clRed;
  Canvas.Brush.Style := bsCross;

  {frame the rectangle}
  FrameRect(Canvas.Handle, TheRect, Canvas.Brush.Handle);
end;

end.