做出像Foxmail、MSN的消息窗体的效果

  Procedure TForm1.FormCreate(Sender: TObject);
Begin
  Form1.Top := Screen.Height;
  Form1.Left := Screen.Width - Form1.Width;
  SysTmrTimer.Enabled := True;
End;

Procedure TForm1.SysTmrTimerTimer(Sender: TObject);//SysTmrTimer是个Timer
Begin
  //请将Interval属性设为10…
  Form1.Top := Form1.Top - 1;
  If Form1.Top = Screen.Height - Form1.Height Then
    SysTmrTimer.Enabled := False;
End;

End.

结合此文章可以做出更多效果……渐变、透明什么的…

procedure TForm1.FormCreate(Sender: TObject);
begin
  AnimateWindow(Handle,2000{速度：2秒},AW_BLEND);
{ AW_HOR_POSITIVE = $00000001;
  AW_HOR_NEGATIVE = $00000002;
  AW_VER_POSITIVE = $00000004;
  AW_VER_NEGATIVE = $00000008;
  AW_CENTER = $00000010;
  AW_HIDE = $00010000;
  AW_ACTIVATE = $00020000;
  AW_SLIDE = $00040000;
  AW_BLEND = $00080000;
}
end;