简单的试了一下类似QQ,MSN的窗口抖动的功能

unit Unit2;

interface

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

type
  TForm2 = class(TForm)
    Button1: TButton;
    procedure Button1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form2: TForm2;

implementation

{$R *.dfm}

procedure TForm2.Button1Click(Sender: TObject);
var
i: Integer;
t: Integer;
l: Integer;
seed: Integer;
begin
t:=Self.Top;
l:=self.Left;
seed := 0;
for i:=0 to 15 do
begin
    Application.ProcessMessages;
    case seed of
    0: begin
         self.Top := t + 5;
         Self.Left := l + 5;
         seed := 1;
       end;
    1: begin
         self.Top := t - 5;
         Self.Left := l - 5;
         seed := 0;
       end;
    end;
    SleepEx(50,True);
end;
self.Top := t;
Self.Left := l;

end;

end.